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COMMUNICATION MONITORING
Command Types
RS232 / RS485 Protocols
RS232 RS485 Pin Definitions
Page 11
COM
TYPE
DESCRIPTION
FORMAT
RESPONSE
B
Returns Tx status in binary
format
Hex 1a
See Table 1: B type command response
C
Returns alarm message in binary
format
Hex 1c
See Table 2: C type command response
D
Set Parameter
Hex 1b
See Table 3: D type command response
RS232
RS485
Pin 1
NC
Pin 1
NC
Pin 2
TX
Pin 2
TR+
Pin 3
RX
Pin 3
RX+
Pin 4
NC
Pin 4
TR-
Pin 5
GND
Pin 5
RX-
Pin 6
NC
Pin 6
NC
Pin 7
NC
Pin 8
NC
Pin 9
NC
A.
Use all capital letters to input commands and responses.
B.
Letters “xxxx” represent the unit’s ID -CODE.
C.
When using RS-232, key in ID-CODE
directly
.
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