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Compatible Devices and Cables
 
31007492                                                                                                                                                                                                    
87
A.3 Modbus/RS232 Ports Pinout
   ! #  !   !  "!  ! $ 
Part Number
Mounting
Method
Operating
Power
(Nominal)
Modbus Plus
Network
Cable
Serial
Ports
Serial
Protocol
NW–BM85–000
Panel or Shelf
115/230 Vac
Single
Modbus
ASCII or RTU
NW–BM85C002
Panel or Shelf
115/230 Vac or
24 Vdc
Single or Dual
Modbus
ASCII or RTU
NW–BM85D008
19 in Rack
125 Vdc or
24 Vdc
Single or Dual
Modbus
ASCII or RTU
NW–BM85E232
Panel or Shelf
115/230 Vac or
24 Vdc
Single or Dual
RS232
Programmable,
User Defined
NW–BM85D002
19 in Rack
125 Vdc or
24 Vdc
Single or Dual
RS232
Programmable,
User Defined
NW–BM85S232
Panel or Shelf
115/230 Vac or
24 Vdc
Single or Dual
RS232
Programmable,
User Defined
"   $  !  "!  !  "  !
!   %"  !    %" ! ! 
!    !% 
5 4 3 2 1
9 8 7 6
REAR PANEL
SERIAL PORT
CONNECTORS
Figure 26
Serial Ports Pinout – Modbus/RS232
Pin
BM85 Direction
Purpose
1
––
Chassis ground
2
In
Receive data
3
Out
Transmit data
4
Out
Data Terminal Ready
5
––
Signal ground
6
In
Data Set Ready
7
Out
Request To Send
8
In
Clear To Send
9
––
not used