Emerson EV3200 - Page 57

Appendix 2 Modbus Communication Protocol 53
EV3200 Door Control Inverter User Manual
Bit definition of inverter status word:
Status word (bit) Value Meaning Remark
1 OD
bit0
0 CD
Current operation direction of door
1 Inverter ready for running Inverter needs to get ready before accepting running commands
bit1
0 No running preparation
1 Running
bit2
0 Standby
Inverter state
1 Inverter faulty Inverter being faulty
bit3
0 Inverter normal Inverter normal and ready for running
bit4 ~ bit15 Reserved
Inverter control parameter group: 0x32
Register address Parameter
0x3201 Inverter main control word
0x3202 Restore factory defaults
0x3203 ~ 0x3204 Reserved
0x3205
Setting output terminal group status (0: OFF, 1: ON) (setting range: 0 ~ 3), 0: not open, 1: open No. 1 relay; 2:
open No. 1 and No. 2 relays; 3: open all three relays
Bit definition of inverter control word:
Control word (bit) Value Meaning Remark
1 Running command valid
bit0
0 Running command invalid
This bit works with the inverter enable bit to run the inverter for
OD and CD
1
OD, auto-learning,, FWD
running
bit1
0 CD, REV running
Elevator door running direction, auto-learning, RWD/REV
running in general drvie mode
1 Reserved
bit2
0
1 Inverter enable
bit3
0 Inverter disable
Indicating the inverter state: normal or faulty. Function same as
terminal EN
1 Reset valid
bit4
0 Reset invalid
Inverter fault has been reset, including all communication
control modes
1 Stop request valid
bit5
0 Stop request invalid
Valid for all communication control modes
bit6 ~ bit15 Reserved
Format and meaning of Modbus function code and data unit: The following takes RTU mode as an example to describe the
frame format. The length of data unit in ASCII mode should be doubled.
Protocol data unit format of reading parameters:
Request format:
Protocol data unit Data length (bytes) Range
Function parameter 1 0x03
Initial register address 2 0x0000 ~ 0xFFFF
Register quantity 2 0x0001 ~ 0x0004
Response format:
Protocol data unit Data length (bytes) Range
Function parameter 1 0x03
Number of bytes read out 1 2*register quantity
Contents 2*register quantity