Instruction manual

2. SPECIFICATIONS

IMR01H02-E3

Error check method: CRC-16

Error code: 1: Function code error

2: When any address other than 0000H to 02EEH and 1388H to 14A0H

are specified

3: When the specified number of data items in the query message

exceeds the maximum number of data items available

4: Self-diagnostic error response

Termination resistor: Externally connected (RS-485)

Maximum connections: RS-422A, RS-485: 32 instruments maximum including a master

RS-232C: 1 instrument

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)