11. SPECIFICATIONS
IMR02E20-E1
107
Modbus
Interface:
Based on RS-485, EIA standard
Based on RS-422A, EIA standard
Communication method:
RS-485:
2-wire system, half-duplex multi-drop connection
RS-422A: 4-wire system, half-duplex multi-drop connection
Synchronous method:
Start/Stop synchronous type
Communication speed:
4800 bps, 9600 bps, 19200 bps, 38400 bps
Data bit configuration:
Start
bit:
1
Data bit: 8
Parity bit: Without, Odd or Even
Stop bit: 1
Protocol:
Modbus
Signal transmission mode:
Remote Terminal Unit (RTU) mode
Function code:
03H (Read holding registers)
06H (Preset single register)
08H (Diagnostics: loopback test)
10H (Preset multiple registers)
Error check method:
CRC-16
Error code:
1: Function code error
(An unsupported function code was specified)
2: When the mismatched address is specified.
3:
When the data written exceeds the setting range.
When the specified number of data items in the query message
exceeds the maximum number of data items available
4: Self-diagnostic error response
Interval time:
0 to 250 ms
Maximum connections:
16 SRZ units per communication port of host computer
Connection method:
Modular juck (6-pin)
Termination resistor:
External connection is necessary (Example: 120
, 1/2 W)
Содержание COM-ML
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