Mod-bus device. Installation and user manual. Doc Rev.1 (03/15)

Transcription

1 Mod-bus device Installation and user manual Doc Rev.1 (03/15)

2 INDICE 1 General Modbus interface Modbus configuration Connection Connection diagram Register Write enable register Modbus register Master board state table Master board error list Master board warning list Zone Master error list Slave board state table Slave board error list... 11

3 Modbus interface 1 General The Mod-bus device is designed to extend the boiler control with interfaces and inputs and outputs required for example when connecting to building management systems. 2 Modbus interface Using this device is it possible to verify a large number of parameters of the system, check if there is some error in each unit composing the system and modify the set point of the three circuits in a very easy way. in the e2prom of the device and can be changed if required. This can be done using the LabVision software, via the bus connection. In Figura 1 you can see the window of the Labvision software that you can use to change the Modbus address of the device. Please keep in mind that the main power of the interface must be switched off, and again on, after changing the Modbus address. The address setting is read from the e2prom only once, at power up. 2.1 Modbus configuration The default setting for the Modbus (dependant) address is 1. The address setting resides Figura 1 The table below reassume the configuration details: Modbus configuration Protocol Modbus RTU Default slave address 0x01 (settable with LabVision) Supported Modbus commands Read Holding registers (0x03)(*1) Write single holding register (0x06) Baud rate 9600bps Data Length 8 Parity None Stop Bits 2 Physical layer RS485 (two wire) Modbus connection J

4 Connection 3 Connection In Figura 2 is shown the location of connectors and components Figura 2 4

5 Register 3.1 Connection diagram Figura 3 To connect the device to the system: 1) connect the supply power to the J1 connector (3 wires) 2) Connect the bus Argus link to the J8 connector (2 wires) 3) connect the RS485 modbus line to the J7 connector (2 wires at 1-3) Now the device is ready and can manage the system. 4 Register Modbus communicates using words (the contents of 16bit holding registers). Multiple holding registers can be read (up to all of the available registers for the device), writing of holding registers is limited to one register at a time. From Modbus holding register 100 all the Modbus devices found by the Modbus driver are readable including their device type and offset. From holding register 100 plus this offset the Modbus holding registers for this device can be found.the data that is offered by the DEVICE is organised as a list of bytes. Some register can only give us an information (read only register). Other registers give us the possibility to read and write data. Depending on the type of Modbus software used, the holding register addressing range starts either at 0x0000 or at 0x0001. If your Modbus software starts addressing from 0x0000 you can use the holding register addresses shown in the table above. If your Modbus software addressing range starts at 0x0001 then add 1 to the holding register addresses listed in the table above. This is also true for the various test tools available for Modbus. 4.1 Write enable register A special control register is implement to secure modbus write actions / commands. To activate these write actions / commands, first the control register must be written. 5

6 Register Set the write enable register only when initiating a write command to a holding register. Do not send this command when no write enable is needed to prevent holding registers from being corrupted. The Write enable register controls the reading and writing of all the holding registers of a specific device. The Write enable register is the following: Holding Parameter name Range Register 98 (Hex 0062) Write enable device XX When no Modbus communication (reading or writing) is sensed for more than 4,0 Seconds the Write enable register bits will be reset. The bits will also be reset when undefined device ID s (i.e. not in the device list) are set. For safety each one of the three circuits is switched off if there is no modbus communication during a time longer than 4,0 seconds. 4.2 Modbus register The table below shows the parameters available and their address (of the holding registers). 6

7 Modbus device* Register Offset Read Write Parameter name Ram value/parameter N auto conversion Range 152MC ArgusLink Device Address X Device Argus Link Address X Controller State STATE See 152MC state table X Controller Error Code ERROR_NUMBER See 152MC error list X Controller Warning Code WARNING_NUMBER_MASTER See 152MC warning list X X Controller CH setpoint 1 -Setpoint_T_CH_High V Depending on units C / F X X Controller DHW setpoint 2 -Setpoint_T_DHW V Depending on units C / F X X High Outdoor Air temperature 17 -T_CH_High_Limit V Depending on units C / F X X Minimum outdoor air setpoint 37 T_Out_Min V Depending on units C / F X X Low outdoor air temperature 18 T_CH_High_Foot V Depending on units C / F X X Maximum Outdoor air setpoint 38 T_Out_Max V Depending on units C / F X X Night Setback 21 Attenuation_High Depending on units C / F X Header temperature X Outside temperature T_OUT_MEAN V Depending on units C / F X Cascade Firing Rate MAIN_TARGET_POWER V % X Min Firing Rate X System pump GENERAL_PUMP V 0/100 = Off/On 152MC ArgusLink Device Address X Device Argus Link Address X State STATE See 152MC state table X Error Code ERROR_NUMBER See 152MC error list X Warning Code WARNING_NUMBER_MASTER See 152MC warning list X X Boiler CH setpoint 1 -Setpoint_T_CH_High V Depending on units C / F X X Boiler DHW setpoint 2 -Setpoint_T_DHW V Depending on units C / F X X DHW type 6 DHW_Type X X CH mode 14 CH_Type_High X Supply temperature FLOW_TEMP_1 (Supply Temp 1) V Depending on units C / F X Return temperature T_RETURN_FIRST_SLAVE V Depending on units C / F X DHW temperature T_TANK V Depending on units C / F X Firing Rate MAIN_TARGET_POWER V % X Analog in 010_IN_VOLTAGE V 0..10,0V X Analog out MOD_PUMP_POWER V 0..10,0V X CH pump CH_PUMP V 0/100 = Off/On X DHW pump DHW_PUMP V 0/100 = Off/On X Burner High hours / CH Hours High Circuit Active Counter hours X Burner Med hours / DHW Hours Sanitary Circuit Active Counter hours X Burner Low hours Low Circuit Active Counter hours 152MC ArgusLink Device Address X Device Argus Link Address X State STATE See 152MC state table X Error Code ERROR_NUMBER See 152MC error list X Warning Code WARNING_NUMBER_MASTER See 152MC warning list X X Zone temperature CH setpoint 3 Setpoint_T_CH_Low (2nd Circuit) V X Zone Supply temperature T_FLOW_2 (Supply Temp 2) V Depending on units C / F 11(+) X Device Argus Link Address 152ZM ArgusLink Device Address (+) X Error Code ERROR_NUMBER See 152ZM error list 11(+) X Zone temperature CH setpoint CALC_ZONE_SETPOINT V Depending on units C / F 11(+) X Zone Supply temperature FLOW_TEMP V Depending on units C / F 11(+) X Mod Pump Speed Zone Master Pump V 0/100 = Off/On X Device Argus Link Address 152SC ArgusLink Device Address X State STATE See 152SC state table X Error Code ERROR_NUMBER See 152SC error list X Warning Code X Supply temperature FLOW_TEMP_HIGH V Depending on units C / F X Return temperature RETURN_TEMP V Depending on units C / F X Flue gas temperature FLUE_TEMP V Depending on units C / F X Firing Rate TARGET_POWER V % X Flame current FLAMEROD_2 Flamerod value (*) Modbus devices 1, 3 and 11 are the master board; device 11+ are the first zone master. The max number of zone master is 8. The addresses of the other zone master are described in the following table: 7

8 Holding register Zone Master # ArgusLink Device Address First Last Modbus device 4 is the first slave board. The max number of slave board is 31. The addresses of the other slave board are described in the following table: Holding register Slave Control # ArgusLink Device Address First Last

9 4.3 Master board state table # State Description 0 RESET_0 1 RESET_1 2 STANDBY_0 3 HANDLE_DEMAND_HIGH_CIRCUIT 4 HANDLE_DEMAND_LOW_CIRCUIT 5 HANDLE_DEMAND_LOW_&_HIGH_CIRCUIT 6 HANDLE_DEMAND_DHW_CIRCUIT 7 FROST_PROTECTION 8 ALARM_1 9 ERROR_CHECK 10 BURNER_BOOT 11 CLEAR_E2PROM_ERROR 12 STORE_BLOCK_ERROR 13 WAIT_A_SECOND 14 TESTMODE_STATE 15 PUMP_FINETUNING_STATE 4.4 Master board error list # State Description 0 RESET_0 1 RESET_1 2 STANDBY_0 3 HANDLE_DEMAND_HIGH_CIRCUIT 4 HANDLE_DEMAND_LOW_CIRCUIT 5 HANDLE_DEMAND_LOW_&_HIGH_CIRCUIT 6 HANDLE_DEMAND_DHW_CIRCUIT 7 FROST_PROTECTION 8 ALARM_1 9 ERROR_CHECK 10 BURNER_BOOT 11 CLEAR_E2PROM_ERROR 12 STORE_BLOCK_ERROR 13 WAIT_A_SECOND 14 TESTMODE_STATE 15 PUMP_FINETUNING_STATE 4.5 Master board warning list # Warning On Display Description 53 4 T_TANK_OPEN T_TANK_SHORTED 9

10 4.6 Zone Master error list # Error Description 1 E2PROM_READ_ERROR 2 WRONG_EEPROM_SIGNATURE 3 REGISTER_ERROR 10 FLOW_SENSOR_OPEN_ERROR 11 FLOW_SENSOR_SHORTED_ERROR 12 OPT_SENSOR_OPEN_ERROR 13 OPT_SENSOR_SHORTED_ERROR 20 OVERHEAT_ERROR 21 FLOW_OVERHEAT_ERROR 255 NO_ERROR 4.7 Slave board state table # State Description 0 RESET_0 1 RESET_1 2 STANDBY_0 3 SAFETY_OFF 4 SAFETY_ON 5 FLOW_SW_CLOSE 6 PRE_PURGE_1 7 IGNIT_0 8 IGNIT_1 9 BURN_0 10 SHUT_DOWN_RELAY_TEST_0 11 SHUT_DOWN_RELAY_TEST_1 12 POST_PURGE_0 13 POST_PURGE_1 14 PUMP_CH_0 15 PUMP_CH_1 16 ALARM_1 17 ERROR_CHECK 18 BURNER_BOOT 19 CLEAR_E2PROM_ERROR 20 STORE_BLOCK_ERROR 21 WAIT_A_SECOND 10

11 4.8 Slave board error list # Error On display Description Lockout errors 1 A01 IGNIT_ERROR 2 A02 NO_FLOW 4 A04 GV_RELAY_NOT_CLOSING_ERROR 5 A05 GV_RELAY_NOT_OPEN_ERROR 6 A06 SAFETY_RELAY_CLOSED_ERROR 7 A07 SAFETY_RELAY_OPEN_ERROR 8 A08 14MS_XRL_ERROR_1 9 A09 RAM_ERROR 10 A10 E2PROM_ERROR 11 A11 REGISTER_ERROR 12 A12 WRONG_EEPROM_SIGNATURE 13 A13 STACK_ERROR 14 A14 14MS_XRL_ERROR_2 15 A15 20MS_XRL_ERROR_1 16 A16 MAXIMAL_THERMOSTAT_OPEN_ERROR 17 A17 FLOW_SENSOR_TOO_HIGH_LOCK 18 A18 RETURN_SENSOR_TOO_HIGH_LOCK 19 A19 FLUE_GAS_SENSOR_TOO_HIGH_LOCK 20 A20 FLAME_OUT_TOO_LATE_ERROR 21 A21 ROM_ERROR 22 A22 BLOCKING_TOO_LONG_ERROR 23 A23 43MS_ERROR 24 A24 FAN_ERROR 25 A25 20MS_XRL_ERROR_2 Blocking errors 33 E01 FASE_ERROR 34 E02 RESET_BUTTON_ERROR 35 E03 FLOW_SW_ERROR 36 E04 E2PROM_READ_ERROR 37 E05 FLAME_ERROR_2 38 E06 SHORTED_FLUE_SENSOR_ERROR 39 E07 OPEN_FLUE_SENSOR_ERROR 40 E08 NETFREQ_ERROR 41 E09 WD_COMMUNICATION_ERROR 42 E10 SHORTED_FLOW_SENSOR_ERROR 43 E11 OPEN_FLOW_SENSOR_ERROR 44 E12 SHORTED_RETURN_SENSOR_ERROR 45 E13 OPEN_RETURN_SENSOR_ERROR 46 E14 FLOW_SENSOR_TOO_HIGH_BLOCK 47 E15 RETURN_SENSOR_TOO_HIGH_BLOCK 48 E16 FLUE_GAS_SENSOR_TOO_HIGH_BLOCK 49 E17 NO_GROUND_CONNECTED 50 E18 NETFREQ_ERROR_WD 51 E19 LAST_BLOKKING_ERROR 11

12 Doc Rev.1 (03/15)