Instruction manual

2. SPECIFICATIONS
IMR01H02-E3
3
Signal logic: RS-422A, RS-485
Signal voltage Logic
V (A) - V (B) ≥ 2 V 0 (SPACE)
V (A) - V (B) ≤ -2 V 1 (MARK)
Voltage between V (A) and V (B) is the voltage of (A) terminal
for the (B) terminal.
RS-232C
Signal voltage Logic
+3 V or more 0 (SPACE)
-3 V or less 1 (MARK)
!"
!"!"
!"
Modbus
Interface: Based on RS-422A, EIA standard
Based on RS-485, EIA standard
Based on RS-232C, EIA standard
(Specify when ordering)
Connection method: 4-wire system, half-duplex multi-drop connection (RS-422A)
2-wire system, half-duplex multi-drop connection (RS-485)
3-wire system, point-to-point connection (RS-232C)
Synchronous method: Start/stop synchronous type
Communication speed: 2400 bps, 4800 bps, 9600 bps, 19200 bps
Data bit configuration: Data bit: 8 (Byte data corresponding to binary data or bit.)
Parity bit: Without, Odd or Even
Stop bit: 1 or 2 (However, with the parity bit selected: 1 bit fixed)
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)