PSM-ME-RS232/TTY-P Interface converter for RS-232 to TTY transmission systems

Transcription

1 Interface converter for RS- to transmission systems. Short Description The rail-mountable and compact interface converters have been designed especially for industrial use in the switch cabinet or switch box. They convert the RS- interface signals bidirectionally to the standard. The devices are simply snapped onto standard EN mounting rails and supplied with V DC or AC. The main areas of application are: Interface adaptation to devices Permanent line for process data evaluation Temporary programming connections The following features of the interface converter are particularly outstanding: operating mode, either active, passive or semiactive Logical signal position can be inverted via plug-in bridge Transmission ranges up to 000 m Transmission rate up to 9. kbit/s High-quality -way isolation (Vcc // RS- // ) Integrated surge voltage protection with transient discharge to the mounting rail Supply voltage ( V DC/AC) to suit the switch cabinet Low nominal current consumption (0 ma) connection with pluggable COMBICON screw terminal blocks RS- connection with 9-pos. SUB-D connector Diagnostics LEDs If you have any technical questions, please contact us at: PSM-HOTLINE:+9/(0) /-9890 FAX:+9/(0) / interface-service@phoenixcontact.com Headquarters: Phoenix Contact GmbH & Co. KG Flachsmarktstraße 8 8 Blomberg Germany Phone +9-(0) --00 Fax +9-(0)

2 RS RS8 D(A) D(B) T(A) T(B) RS RS8 D(A) D(B) T(A) T(B) Interface converter for transmission systems Example application Interface adaptation between the RS- standard and the standard. PSM-ME... permanent line for visualization and process data acquisition (fig. ) Temporary programming and parameterizing connection (fig. ) PSM ME RS/RS8 P Ord.-No.: 8 9 max. 000 m fundamentals RS max. m Nowadays, the current loop interface is also to be found in programmable logic controls (PLC), on visual display units and printers. two shielded and twisted wire pairs are required, one for the transmit and one for the recieve line. Data transmission is carried out using the full duplex procedure with software handshake. Control lines are not provided for. A loop current of 0 ma represents the status logical "". An interrupted circuit represents the logical value "0". A source current is required in each loop, coupled in on either the transmitting or receiving side. The current sourcing side is described as "active" to the "passive" side is always opposite it. We distinguish between three interface configurations (fig. ):.Fully active interfaces with current sources in both the transmitter and receiver branch..passive interfaces without the relevant constant- current sources..semi-active interfaces with current sources only on the transmitter side (TD). The receiver (RD) is designed as passive. To make a transmission path, it is necessary to be familiar with the type of interface. The transmission path is a connection between two semi-active devices or between an active and a passive one. Such transmission can bridge distances of up to 000 m. The conductor pairs should be twisted in pairs for both the transmit and receive loop. In the latest recommendations, the maximum transmission speed was increased from 900 bit/s to 900 bit/s. fully active RS max. m passive semiactive semiactive PSM-ME... PSM ME RS/RS8 P Ord.-No.: 8 9 max. 000 m Fig. Fig. Fig. Standards: DIN 8- DIN 8- Transmission rate: 9. kbit/s Transmission length: 000 m Procedure: current loop Principle: full duplex, point-to-point PHOENIX CONTACT page of 8

3 Interface converter for transmission systems. Order data Type Order No. Pcs. Pkt. Interface converter, for the conversion of RS- to standard, -way isolation, rail-mountable 8.. Accessories Power supply, primary switched-mode, 0 V AC V DC, 0 ma, rail-mountable 0 V AC MCR-PS 0 AC/ DC/0 8 9 MCR-PS 0 AC/ DC/0 8 9 RS- cable, m, to connect the PSM-ME-RS- converter to a 9-pos. device interface RS- cable, m, to connect the PSM-ME-RS- converter to a -pos. device interface SUB-D plug, 9-pos., with screw connection and one cable entry SUB-D9/SUB-D9 (socket/socket) SUB-D9/SUB-D (socket/socket) socket pin PSM-KA-9SUB 9/BB/METER 99 PSM-KA-9SUB /BB/METER 0 SUBCON 9/F-SH 9 9 SUBCON 9/M-SH Technical Data Supply voltage Frequency Rated current consumption Connection LED operational availability RS- interface Type of transmission Coding option Control lines Data indicator Transmission length Connection V AC/DC ± 0 % DC-0 Hz typ. ma pluggable COMBICON screw terminal block LED green acc. to DIN 9 T, CCITT V.8 protocol transparent /DCE switchover via DIP switch RTS/CTS and DTR/DSR permanently bridged internally LED green (RD) RS- receive data (dynamic) LED yellow (TD) RS- transmit data (dynamic) 0... m shielded 9-pos. SUB-D pin strip interface Loop current Load Transmission rates Transmission length Transmission method Connection Coding option Output impedance/transmitter Input impedance/receiver Bit distortion Bit delay. General data data/shield acc. to CL and DIN 8 T x 0 ma ±0% 00 Ω up to 9. kbit/s m twisted pair, shielded -wire, full duplex pluggable COMBICON screw terminal block /shield connector passive, semi-active or active operation via insertion bridges max. Ω Ω % µs Protection circuit Transient discharge Electrical -way isolation Test voltage Resistance to vibration Ambient temperature range Protection type Housing: Connection data (conductor cross section) - COMBICON plug connectors Weight Approval Material Dimensions (W / H / D) Y-capacitors, suppressor diodes, gas-filled surge arresters via metal foot on EN mounting rail power supply // RS- // kvrms, 0 Hz, min. g in acc. with IEC C to + C IP 0 PA-V0 (99 /./ 8.) mm mm (AWG -) approx. g u ) NRZ: Non Return To Zero PHOENIX CONTACT page of 8

4 8, Interface converter for transmission systems c Complies with EMC guideline 89//EEC EMC (electromagnetic compatibility) Immunity to interference in acc. with EN 008- Electrostatic discharge (ESD) Electromagnetic HF field: Amplitude modulation: Pulse modulation: Fast transients (Burst) Signal: Supply: Surge voltage capacities (Surge) Signal: Supply: Conducted disturbance Noise emission in acc. with EN 008- EN EN EN EN EN EN 0 Criterion B 8 kv discharge in air kv contact discharge Criterion A 0 V/m 0 V/m Criterion B kv/ khz kv/ khz Criterion B kv/ Ω 0. kv/ Ω Criterion A 0 V Class A EN 000 corresponds to IEC 000 EN 0 corresponds to CISPR Criterion A: Normal operating behavior within the defined limits. Criterion B: Temporary impairment of operational behavior that the device corrects itself. Class A: Area of application: industry, without special installation measures. 99, Fig. PHOENIX CONTACT page of 8

5 RS - Device-Typ RS DCE Inv. norm. VCC Interface converter for transmission systems Function elements (fig. ) Supply voltage V AC/DC LED supply voltage (VCC) LED-RS receive data (RD) LED-RS transmit data (TD) RS- interface connection (SUB-D 9-pos.) interface connection Shield connector 8 Snap-on foot for mounting rails in acc. with DIN EN 0 0 T+ S+ S+ T+ S+ S+ T R RS Ord.-Nr.: 8 Ord.-No.: 8 T R APPROBATIONEN / APPROVALS APPROBATIONEN / APPROVALS 8 Fig.. Operational Diagram SUB - D 9 pole Steckbare Schraubklemme Screw terminal block Bloc de jonction a`vis Borne de tornillo V V OV OV +V (Port B) +V (Port A) gn DCE 0mA S+ T + T - TxD RxD gn RTS CTS DSR 8 ye 0mA R - R + S+ DTR Shield Fig. PHOENIX CONTACT page of 8

6 Device-Typ RS DCE Inv. norm. Interface converter for transmission systems. Notes on connection V.. Connections (fig. 8) Plug connector power supply Connect V AC/DC ± 0 % via the COMBICON plug connector (PIN and ). Operational availability is signaled via the VCC LED. 0 V RS- interface 9-pos. SUB-D pin strip interface pluggable COMBICON screw terminal block PSM ME RS/ P Ord.-No.: RS T+ S+ S+ T R Fig. 8.. Mounting in the switch cabinet (fig. 9) Mounting (on mm mounting rails in acc. with DIN EN 0 0): Hinge the device into the upper edge of the mounting rail and snap it in with a downward motion. Note: The mounting rail must be connected to ground potential. This is the only way to guarantee that the integrated surge voltage protection functions and that the shield of the bus conductor makes contact effectively. Dismantling: Pull back the metal disassembling lever with the aid of a screwdriver and remove the device. T R T+ S+ S+ T+ S+ S+ T R RS Ord.-Nr.: 8 Ord.-No.: 8 APPROBATIONEN / APPROVALS APPROBATIONEN / APPROVALS Fig. 9 PHOENIX CONTACT page of 8

7 Interface converter for transmission systems. The RS- interface Designation SUB-D 9-pos. (pin) PSM-ME-RS... peripherals side Transmit data TXD PIN Receive data RXD PIN Clear to send CTS PIN 8 Request to send RTS PIN Functional ground PIN DEE data terminal ready DTR PIN Data set ready DSR PIN Ground Shield.. Interface coupling SUB-D 9-pos. (pin) TxD RxD CTS RTS DTR DSR 8 max. m SUB D TxD RxD CTS RTS DTR DSR Make a -to- connection between the PSM module and the peripheral device as shown in Fig. 0. Note: For a minimum configuration, you need to connect TXD, RXD and (software handshake)! Connect the 9-pin SUB-D plug to the module. Fig. 0.. Data indicator Two diagnostic LEDs indicate the RS- interface modes Yellow: Transmit data (TD), dynamic Green: Receive data (RD), dynamic T+ S+ S+ T+ S+ S+ T R PSM-ME-RS/T RS Ord.-Nr.: 8.. Configuration For configuration, release the top of the housing on both sides. Pull the p.c.b. out of the housing as far as possible (fig. ). T R Static charges can damage electronic devices. Discharge the electrical charge from your body before opening and configuring the device. To do so, touch a grounded surface, e.g. the metal housing of the switch cabinet. APPROBATIO Fig. PPROBATIO.. /DCE switchover (fig. ) The /DCE switches can be used to cross the cables TXD and RXD internally so that an adaptation can be performed easily. For the connection to: Data terminal equipment () switch to position (up). (Standard setting for most applications) /DCE Data communication equipment (DCE) switch to position DCE (down). If the connected interface type is unknown, you can determine the right configuration by trial and error (/DCE switch). Fig. PHOENIX CONTACT page of 8

8 Interface converter for transmission systems. The interface.. Pin configurations Designation COMBI- CON (fr. right) PSM-ME- active S+ T+ T PSM-ME- passive R Current source neg. polarity PIN pos. polarity S+ PIN Current source neg. polarity PIN pos. polarity S+ PIN Transmit data neg. polarity T- PIN pos. polarity T+ PIN Receive data neg. polarity R- PIN pos. polarity PIN Ground connection shield 8 R S+ S+ T+ T R PSM-ME- semi-active T T+ PSM-ME- semi-active R T T+ S+ Fig. a.. Operating modes The desired operating mode active, passive (fig. a) or semi-active (fig. b) is set using external insertion bridges is determined scheme of wiring (bridges are included in the scope of supply). Note: Only one fully active interface may be connected to a passive interface, or two semi-active interfaces to one another! We recommend shielded twisted pair cables ( x cores twisted) as connecting cable. Jumper Fig. b.. Inverting the signal position The logical signal position is configured at delivery for normal operation (log. = current flow 0 ma). The logical signal position can be inverted by switching a jumper below the /DCE change-over switch (fig. ).. Shielding the data cables Use shielded twisted pair cables. Connect the cable shield to both sides of the transmission path! The data cables are shielded using a shield connector that is fixed in the terminal block (fig. ). The terminal block is connected capacitively to the mounting rail contact on the underside of the device. The shield connector is included in the scope of supply. insertion bridges example fully active T R T+ S+ S+ T+ S+ S+ T R RS RS Fig. ROB B Fig. PHOENIX CONTACT TNR: PHOENIX CONTACT page 8 of 8