Reference hardware manual. DinBox RTU SL V1.0b

Transcription

1 Reference hardware manual DinBox RTU SL V1.0b Bausch Datacom NV Tiensesteenweg 56 B-3360 Korbeek-Lo

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3 ! CAUTION! ELECTRIC SHOCK HAZARD IF COVER REMOVED SERVICE BY QUALIFIED PERSONEL ONLY Document History Date 21/08/12 26/09/12 18/01/13 Version Status Author V1.0 Preliminary Filip Lavaerts Creation V1.0a Filip Lavaerts 2DI 8DI key error V1.0b Filip Lavaerts Some pictures added 3 Info

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5 1. Introduction 2. Block Diagram 3. Specifications 3.1 Housing 3.2 Power supply 3.3 GSM Module 3.4 I/O's Power connection Configuration interface Analogue inputs Digital Inputs Digital Outputs RS wire serial interface SIM & MMC/SD card readers 4. LED Indicators 5. Configuration & Setup 5.1 Configuration mode 5.2 View Configuration 5.3 Test 6. Running mode 6.1 Possible short cut-keys during running mode 6.2 Possible SMS commands during running mode 7. Used Telegram formats 8. EMC 5

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7 1. Introduction This manual is the reference guide when setting up the "DinBox RTU SL" device. Because of the nature of this product and it's field of application, some degree of technical background knowledge regarding the application and data-communication is assumed. This RTU has 8 digital inputs, 2 digital outputs and 2 analogue inputs. It can send/receive data to/from a CTU (central processing unit) via GSM data, GPRS or SMS messaging. The main functionality of the DinBox RTU SL are : DIN rail mountable housing Configuration, setup and monitoring via a standard RS-232 serial interface 2 x non-isolated analogue inputs 8 x active galvanically isolated digital inputs 2 x galvanically isolated and independent digital outputs 2 x analoge input Sierra Wireless (Wavecom) SL6087 GSM/GPRS module with TCP/IP stack SIM card holder Atmel AVR ATXMEGA256D3 processor 10 ppm RTC with battery backup 2 x 64K FRAM [8.192*8 bit] MMC/SD card holder Power backup via SuperCap galvanically isolated 2-wire RS-485 interface 7

8 2. Block Diagram The block diagram below details the interconnection of the different functional units within the "DinBox RTU SL". GPIO USART 8x DI SL6087 GPIO I2C 2x DO 12-bit ADC 2x AI MMC/SD CONFIG RS-485 ATMEL ATXMEGA 256D3-AU SPI I2C 64K FRAM 64K FRAM RTC USART USART Power Supply SuperCap 8

9 Power Supply The "DinBox RTU SL" is powered via a wide range V AC mains or a 9-25 V DC power supply. The AC powered RTU can be optionally delivered with 25F SuperCap capacitor for -short time- power backup. Configuration interface All local communication with the RTU for configuration, setup and monitoring is done via the serial RS-232 config interface. GSM Module The "DinBox RTU SL" has a build-in Sierra Wireless (Wavecom) SL6087 GSM/GPRS module. This module will be used to transfer data from/to the CTU or host system. The GSM module needs a SIM card with a disabled PIN code request. A standard FME connection is provided for connecting a external GSM antenna. Atmel ATXMEGA256D3 processor All functionalities are automatically guided by the Atmel processor with the proper firmware. This processor will/can control the following tasks ; - communication with the RTC (real time clock) communication with the Sierra Wireless (Wavecom) SL6087 GSM/GPRS module serial RS-485 communication read AD converters to measure AI voltages calculations on measured or received data DI changes scanning set DO's write and read data in/from the non volatile FRAM memory write and read data in/from the MMC/SD memory MMC/SD The "DinBox RTU SL" has a MMC/SD card socket. This memory can be used to store the firmware code, configuration, measured data and log information. Status LED 'SD' will illuminate when a proper MMC/SD card is installed. 9

10 IO This RTU has 2 analogue inputs, 2 digital outputs and 8 digital inputs. 2 x AI - not galvanically isolated (- connection = GND) 8 x DI - galvanically isolated (opto coupler) - active inputs (24Vdc) 2 x DO - galvanically isolated (opto mos solid state relay) FRAM The "DinBox RTU SL" has 2 FRAM (ferro electric RAM) of 64 Kb (8.192 x 8 bits). This non volatile memory will be used to store the configuration, measured data and log information. RTC The RTU has a built-in 10 ppm real time clock with a separate battery backup. See next chapter for more technical details. 10

11 3. Specifications 3.1 Housing The "DinBox RTU SL" is packed into a Phoenix UEG-EU-BE housing. This housing has a DIN rail snap slot for easy DIN rail mounting. 3.2 dimensions 172 mm x 35 mm x 135 mm Power Supply AC Power Supply Input voltage range Frequency range Safety standards Withstand voltage 85 ~ 264 Vac / 120 ~ 370 Vdc 47 ~ 440 Hz EMC, UL1950, TUV EN KVac DC Power Supply (optional) Input voltage range 9 ~ 26 Vdc Polarity protected with diode No internal fuse 11

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13 3.3 GSM module The DinBox RTU includes a state-of-art Sierra Wireless (Wavecom) SL6087 quad band GSM/GPRS module. General Specifications Quad band 900/1800 MHz operation Maximum power output: 2 Watt 3V SIM reader Asynchronous DTE interface with speeds up to bps Flow control (RTS/CTS XON/XOFF) and speed buffering AT command set support Data Features GSM DATA : Data circuit async, transparent and non transparent up to bit/s Fax group 3 (Class 1 and Class 2) GPRS packet Data : GPRS Class 10 Coding Schemes : SC1 to CS4 PBCCH support Message services Point to point (MT/MO) and cell broadcast EMS Embedded IP The following TCP/IP features and protocols are available : PPP / ICMP / DNS / SMTP / POP3 / FTP / TCP socket A FME connection is provided for external antenna connection. 13

14 Disconnect the mains power before connecting or disconnecting the power and/or DTE plugs! 3.4 I/O's Before you start the installation, take a moment to become more familiar with the possible connections to and from the "DinBox RTU SL". N L + IN DO AI DO1 DO1 DO2 DO2 8x DI / active 24Vdc 2x DO / 100mA non inductive 2x AI 0~5Vdc Integrated GSM/GPRS MMC CARD CAUTION DinBox RTU SL CONFIG Electric shock hazard if covers removed. Service by qualified personal only. Disconnect mains before opening. SIM DI IO DI+. RST GND. G A B DI1 DI2 DI3 DI4 DI5 DI6 DI7 DI8 14 CE Bausch Datacom GSM µp DinBox RTU SL MAINS N L RTS SD AI1 + AI1 AI2 + AI2 - AC Vac DC 9 25Vdc

15 3.4.1 Power/Mains The "DinBox RTU SL" must be powered from mains or a DC power source (optional). Optional power backup, during/after a Mains disconnection, is provided via SuperCaps. Power/Mains connection Connect the ac mains or DC power supply to the power connector. Make sure the voltage supplied to the "DinBox RTU SL" is in the range of the power supply specification (see specifications above for details on voltage range). SuperCap connection The "DinBox RTU SL can be delivered with a SuperCap backup. The SuperCap board with 4x Maxwell PC25 is directly soldered, via two wires, onto the main PCB Configuration interface Only devices which are conform with the safety regulations can be connected to the DTE port! All local communication with the "DinBox RTU SL" for configuration, setup and the necessary maintenance tasks is done via the serial configuration interface. The RTU has a serial RS-232 interface (RJ-45) which can be connected to a computer or similar device via a RJ-45 to DB-9 serial cable. Only RxD, TxD, RTS and CTS are used. If RTS is active the LED RTS will illuminate. A terminal software program (eg. HyperTerminal) must be used to communicate with the RTU. The following parameters must be used : Speed : Data bits : Parity : Stop bits : Flow control : bps 8 none 1 none 15

16 Pin Pin RJ45 DB9 I/O Description From RTU to PC From PC to RTU From PC to RTU From RTU to PC --- Receive data Transmit data Request to sent Clear to sent Signal ground Bausch MAINS N L DO1 DO1 DO2 DO2 DO-DI AI1 + AI1 AI2 + AI RTS SD GSM µp MMC CARD DinBox RTU SL CONFIG SIM DI1 DI2 DI3 DI4 DI5 DI6 DI7 DI8 IO DI+. RST GND. G A B RXD 3 TXD 45 GND 67 RTS 8 CTS

17 3.4.3 Analogue input connection The "DinBox RTU SL" can monitor up to 2 non isolated analogue signals. 12 bit single ended ADC s (ATXMEGA256D3) input impedance > 100 Kohm measurement precision > 1 % input voltage : 0 ~ 5 Vdc 300K 0.1% ATXMEGA bit ADC Varistor 2.54 V ref. 300K 0.1% 0.08 mm2 1.5 mm2 Conductor cross section : rigid min. rigid max. flexible min mm2 flexible max. 1.5 mm Digital input connection The "DinBox RTU SL" can monitor up to 8 digital inputs. The inputs are active thanks to an internal 24Vdc dc/dc convertor. To minimise contacts, one common contact is used. opto coupler SFH active voltage : 24 Vdc 0.08 mm2 1.5 mm2 Conductor cross section : rigid min. rigid max. flexible min mm2 flexible max. 1.5 mm2 10K Active Input + U Varistor BAS Vdc

18 3.4.5 Digital output connection The "DinBox RTU SL" can control up to 2 digital outputs. OptoMos PS7241E Ron : 35 Ohm maximum Iload : 120 ma maximum (not protected with a fuse!) Non inductive load! Over voltage protection with suppressor diode (Trisil) Conductor cross section : rigid min. rigid max mm2 1.5 mm2 flexible min mm2 flexible max. 1.5 mm2 Trisil RS wire The "DinBox RTU SL" has one isolated 2-wire RS-485 interface. This interface can be used to communicate with intelligent periferie. JP4 can be use to terminate the line with a 120E resistor. 18

19 3.4.7 SIM & MMC/SD card readers The "DinBox RTU SL" has a SIM and MMC/SD card reader in the front of the enclosure. Always disconnect power before inserting or removing a card. In order to work correctly, the PIN request of the SIM card must be disabled. 19

20 4. LED indicators There are 4 status LEDs onto the front of the "DinBox RTU SL" : RTS reflects the state of the RTS (request to send) signal of the configuration port GSM OFF Slow flash Quick flash no service registered on the network communication in progress SD ON when a proper MMC/SD is inserted up OFF ON 1s flash RTU not powered during configuration mode during running mode 20

21 5. Configuration & Setup The setup of the DinBox RTU SL is done via the Configuration menu. To access this menu, a PC with a terminal program (Microsoft HyperTerminal) must be connected on the serial configuration port. Baudrate is fixed to bps (8N1). The DinBox RTU SL has two basic operation modes : Configuration mode Running mode Normal working mode is Running mode. To configure and/or test the DinBox RTU SL the user has to enter into the Configuration mode. When the RTU is starting up, after the starting up process, the user has 5 seconds to enter the Configuration mode by sending a random character to the DinBox RTU SL. Wait 5 seconds to RTU start or press any key to enter Main Menu When the DinBox RTU is in Running mode a S must be send to enter the Configuration mode Configuration mode This chapter describes the different menus into the Configuration mode and shows how to configure and test the DinBox RTU SL. The Main Menu is the starting point to configure and test the DinBox RTU. *** DinBox RTU Main Menu *** S. View configuration Configuration Test START RTU? Select 2 to enter the Configuration Menu. 21

22 *** Configuration Menu *** Set Set Set Set Source Address Identification Id's Date and Time SMS Phone Numbers 5. Set DI Report TX period 6. Set GPRS Parameters 7. Set Power Down Vin voltage 8. Reset Sequence Numbers A2000 configuration : a. Set slave addresses b. Set UIPQ sample TX period c. Set Deadband <cr>. Save Configuration and Return? The Configuration Menu structure is strait forward. Each parameter input is always accompanied with the possible values or the min and/or max value Set Source Address Input of the Source Address for DI and AI telegrams of this RTU. Value Set Identification Id s Input of the Identification field for DI and AI telegrams of this RTU. Value Alphanumeric ASCII text string up to 50 characters Set Data and Time Input of Day Value Input of Month Value Input of Year Value Input of Hour Value Input of Minutes Value Input of Seconds Value

23 Set SMS Phone Numbers Input of Host SMS number. This telephone number shall be used to transmit an SMS message after some unsuccessful attempts for sending a telegram to the host system via GPRS. If value is 0, no SMS message will be send after unsuccessful attempts. Value +32xxxaabbcc or 0 Input of Test SMS number. This telephone number shall be used when a test SMS is initiated from the Test Menu. Value +32xxxaabbcc Set DI report period The RTU can send a keep-alive (DI group message) after a predefined DI report period. Value 0 to 255 hour, 0 for no DI reports Set GPRS parameters If no input is required, use <enter> to go to the next parameter. APN (GGSN) (25 char max) : internet.proximus.be APN username (25 char max) : APN password (25 char max) : Primary DNS (a.b.c.d) : Secundary DNS (a.b.c.d) : Sck server IP (a.b.c.d) : Sck server Port ( ) : Set Power Down Vin voltage This is the battery threshold voltage. This value depends on the supercap value and the application. When this voltage is reached the RTU will shut down automatically. Value 1 to 15 Volt (default 4.00 V for SuperCap) Reset Sequence Numbers Select 8 to reset (0000) the DI and AI Sequence Numbers. To save the changes exit the Configuration Menu by typing <enter>. The RTU will go back to the Main Menu. 5.1.a. Set slave A2000 slave address Enter the highest address (eg. 250) and give the amount of slaves connected. For example : 250 and 3 slaves --> addresses 250 / 249 / 248 will be used. 23

24 5.1.b. Set UIPQ sample TX period This value reflect the time (min) between the AI measurements / AI-group messages. Value 0 to 255 min, 0 for no AI reports 5.1.c. Set deadband Deadband measurement is possible onto the P, Q, I and/or U values. If deadband is enabled onto a unit, % and measurement period (s) will be asked. A2000 P deadband enabled (0/1) : 0 A2000 Q deadband enabled (0/1) : 0 A2000 I deadband enabled (0/1) : 0 A2000 U deadband enabled (0/1) : 1 U deadband range [%] : 5 A2000 deadband measurement period (2-255 sec) : 20 24

25 5.2. View Configuration Always check the configuration after a configuration change. This can be done via the View Configuration option in the Main Menu. *** DinBox RTU Main Menu *** S. View configuration Configuration Test START RTU? Select 1 to enter the View Configuration. FIRMWARE VERSION Date & Time : V0.0 : 20/08/12 12:16:07 DI DI AI AI : : : : source address identification source address identification AI Info TX period DI_test AI_test : 15 min A2000 Slave[1] Addr. : 250 A2000 Slaves present : 2 A2000 U db enabled : 2.00 [%] A2000 db update period: 20 s Report period Report period done Host SMS number Test SMS number : : : : 24 h 6 h APN (GGSN) APN username APN password Primary DNS Secundary DNS Sck server IP Sck server Port : internet.proximus.be : : : : : : 405 Current Sequence numbers DI, AI : 0045, 0576 Vin= 4.90 V SC_TH= 4.00 V The displayed configuration information is very logical and similar to the input given via the Configuration Menu. 25

26 5.3. Test menu Select 3 to enter the Test Menu. *** Test Menu *** 1. Config interface <> GSM module transparant 2. Config interface <> 2-wire RS-485 transparant 3. Send a test SMS 4. A2000 test 5. Analog test 6. MMC/SD test I. Digital Input test O. Digital Output test <cr>. Return? Specific sub menu's for GSM/GPRS module access, RS-485 interface debugging, SMS send test, A2000 Modbus debugging, MMC/SD card debugging, and AI, DI and DO tests are provided via this Test Menu. 26

27 6. Running mode This chapter describes the Running mode of the DinBox RTU SL. To enter the Running mode select S. from the Main Menu. *** DinBox RTU Main Menu *** S. View Configuration Configuration Test START RTU? Or, the Running mode is automatically started when the DinBox RTU SL is powered on without a key press after Wait 5 seconds to RTU start or press any key to enter Main Menu. Next info will be displayed on the screen when the DinBox RTU starts it s Running mode.... RTU started... Current date time : 20/08/12 01:38:59 A2000 db update period: 20 s Next Update : DD/MM/YY HH:39:19 DI [0...8] : > AI Periodical Update Current date time : 20/08/12 01:38:59 Next Update : DD/MM/YY HH:39:59 Above : the DinBox RTU SL will display current time and the time when the next AI telegram (if AI info report period <> 0) will be send to the host. The first time difference is always 20 seconds.... Opening Socket for DI group (0045) info GPRS bearer check... // OK //... GPRS bearer open/start [1] (1) GPRS bearer check... // +WIPBR: 6,1 27

28 OK //... GPRS bearer already open and started Opening TCP socket [1] (1) Sending info in opened TCP socket [1] (1)... :::::::... Type-6 complete /1/... TX di_test_1ED Above : the RTU will send a group DI telegram at start up. This is done for synchronisation of the host with the actial DI situation.... Closing TCP socket [1]... --> Socket closed > [250] Ps{0}00000 Qs{0}00000 I2{0000.0}32768 Ut{0229.5}37161 > [249] Ps{0}32768 Qs{0}32768 I2{0000.0}32768 Ut{0833.1} Opening Socket for group AI (0576) info GPRS bearer check... // +WIPBR: 6,1 OK //... GPRS bearer already open and started Opening TCP socket [1] (1) Sending info in opened TCP socket [1] (1)... ::::::::... Type-6 complete /1/... TX -> ai_test_1DD Above : the first AI telegram for the first slave address _1 (250). After this telegram the time difference with for sending the next AI telegram will be the time (minutes) as saved into Configuration Menu.... Closing TCP socket [1]... --> Socket closed... Opening Socket for group AI (0577) info GPRS bearer check... // +WIPBR: 6,1 OK //... GPRS bearer already open and started Opening TCP socket [1] (1) Sending info in opened TCP socket [1] (1)... ::::::... Type-6 complete /1/... TX -> ai_test_51C 28

29 Above : the first AI telegram for the second slave address _5 (249). After this telegram the time difference with for sending the next AI telegram will be the time (minutes) as saved into Configuration Menu.... Closing TCP socket [1]... --> Socket closed As of now the RTU is working in 'his loop' :... checking DI changes AI measurement when AI period is expired AI measurement when deadband is enabled (only basic tasks described)... (each 30 seconds the RTU will check SMS reception, display time and will verify the internal working voltage) > Info : 4.88V - 21/08/12 02:08:14 > Check for SMS message : OK... During Running mode of the RTU the µp-led is flashing on/off 1 second. This reflects the heart beat of this mode. 29

30 6.1. Possible short cut keys during running mode S Stop, back to Configuration Mode A A-2000 slave PQIU measurement without stopping the running mode Reading > [250] > [249] Reading C A2000 slave(s)... Ps{0}00000 Qs{0}00000 I2{0000.0}32768 Ut{0228.4}36998 Ps{0}32768 Qs{0}32768 I2{0000.0}32768 Ut{0829.6}65535 done. CSQ GSM/GPRS module measurement without stopping the running mode... Read CSQ value... --> 26,0 I to display the currect IP address of the RTU without stopping the running mode... Read IP address... --> Possible SMS commands during running mode It s possible to send a SMS to the RTU to check if the RTU is running properly status SMS The SMS message should only contain status or Status (no CR or LF). If a correct SMS message is received the RTU will send a SMS message back with the following information: V0.0 21/12 11:52 19, DI_test / AI_test / 0170 Ut I Pt Qt Firmware version Date and Time CSQ value IP address DI Identification string / sequence number DI info, channel 1 to 8 AI Identification string / sequence number AI info, U from first A2000 address AI info, I from first A2000 address AI info, P from first A2000 address AI info, Q from first A2000 address reset SMS The SMS message should only contain reset or Reset (no CR or LF). If a correct SMS message is received the RTU will reset. 30

31 7. Used Telegram formats ASCII messages (Telegrams) will be send to the host system via a TCP/IP socket over a GPRS link. See ABB GPRS ASCII Protocol Specification ref. NMKD-3085 for more detail about this protocol. Each telegram will be send separately : open or check GPRS/APN connection Opening socket Sending telegram Waiting type-6 responds Closing socket Available message types are : 1 single digital input (DI) message format 4 group of digital input (8 x DI) with status message format 5 group of analogue input (4 x AI) with status message format (ABB GPRS ASCII Protocol Specification ref. NMKD-3085) Single DI Telegram format Byte nb Field <STX> 1 single digital input Source Address DI (MSB) Source Address DI Source Address DI Source Address DI Source Address DI Source Address DI (LSB) Sequence Number DI (MSB) Sequence Number DI Sequence Number DI Sequence Number DI (LSB) Year (LSB) Year Year Year (MSB) Month (LSB) Month (MSB) Day (MSB) Day (LSB) Hour (MSB) 31 Value

32 Hour (LSB) Minute (MSB) Minute (LSB) Sign of value <space> DIx Value (MSB) Dix Value Dix Value Dix Value DIx Value (LSB) DI Identification Length (MSB) DI Identification Length (LSB) DI Identification (MSB) DI Identification DI Identification (LSB) _ DI number (LSB) DI number (MSB) Check Sum (MSB) Check Sum (LSB) <CR> Group of DI Telegram format Byte nb Field <STX> 4 -- Group of X digital input Source Address DI (MSB) Source Address DI Source Address DI Source Address DI Source Address DI Source Address DI (LSB) Sequence Number DI (MSB) Sequence Number DI Sequence Number DI Sequence Number DI (LSB) Year (LSB) Year Year Year (MSB) Month (LSB) Month (MSB) Day (MSB) Day (LSB) Hour (MSB) Hour (LSB) 32 Value

33 Minute (MSB) Minute (LSB) Power Supply Status Number of digital channels (LSB) Number of digital channels (MSB) DI16 Value DI15 Value DI14 Value DI13 Value DI12 Value DI11 Value DI10 Value DI9 Value DI8 Value DI7 Value DI6 Value DI5 Value DI4 Value DI3 Value DI2 Value DI1 Value DI Identification Length (MSB) DI Identification Length (LSB) DI Identification (MSB) DI Identification DI Identification (LSB) Check Sum (MSB) Check Sum (LSB) <CR> Group of AI Telegram format Byte nb Field <STX> 5 -- Group of X digital input Source Address AI (MSB) Source Address AI Source Address AI Source Address AI Source Address AI Source Address AI (LSB) Sequence Number AI (MSB) Sequence Number AI Sequence Number AI Sequence Number AI (LSB) Year (LSB) 33 Value

34 Year Year Year (MSB) Month (LSB) Month (MSB) Day (MSB) Day (LSB) Hour (MSB) Hour (LSB) Minute (MSB) Minute (LSB) Power Supply Status Number of digital channels (LSB) Number of digital channels (MSB) AI1 Value (LSB) AI1 Value AI1 Value AI1 Value AI1 Value (MSB) AI2 Value (LSB) AI2 Value AI2 Value AI2 Value AI2 Value (MSB) AI3 Value (LSB) AI3 Value AI3 Value AI3 Value AI3 Value (MSB) AI4 Value (LSB) AI4 Value AI4 Value AI4 Value AI4 Value (MSB) AI Identification Length (MSB) AI Identification Length (LSB) AI Identification (MSB) AI Identification AI Identification (LSB) Check Sum (MSB) Check Sum (LSB) <CR>

35 7.4 Field descriptions Start Character Code Format Source Address Hex(02) ASCII 1, 4 or 5 ASCII Unique Address of the DinBox RTU Sequence Number ASCII Each message is marked with an event number. Year Month Day Hour Minute ASCII ASCII ASCII ASCII ASCII Power Supply Status ASCII 0 ASCII 1 No mains detected. Mains detected. Sign of value only used in code format 1 Positive values can be either space, &H00 or + Number of channels only used in group code format 4 and 5 ASCII 00 to 99 (default 04 AI / 16 DI) AIx Value if code format AI 5 : ASCII ASCII representation of the ADC output value. DIx Value if code format DI 1 : ASCII or if code format DI 4 : ASCII 0 or 1 Identification Length ASCII Number of bytes in the identification string. Identification String ASCII Identification string of the DinBox RTU. All characters are allowed. If code format DI 1 _1 _8 will be added to identify the DI/AI source Those additional characters are also added in the Identification Lenght. Check Sum ASCII 00 FF The check sum is a 8-bit arithmetic sum represented as an hexadecimal code in two ASCII characters. This check sum is calculated on all bytes between the <STX> and the checksum field in the message. <STX> and checksum info are excluded from the check sum. Stop Character Hex(13) 35

36 8. EMC Emission measurements following EN 55022: Conducted Emission (150 khz 30 MHz) Radiated Emission (150 khz 3 GHz) Immunity test following EN 55024: EN : Immunity to Electrostatic Discharges (enclosure) EN : Immunity to Radiated Electromagnetic fields (enclosure) EN : Immunity to electrical Fast Transients (230 VAC & I/O s) EN : Immunity to surges (230 VAC & I/O s) EN : Immunity to conducted fields (230 VAC & I/O s) EN : Immunity to magnetic fields (enclosure) EN : Immunity to Dips and Interruptions (230 VAC) 36