Owner's manual

 COM2

Recommended Cable

Connector

XM2D-0901 <made by OMRON Corp.>

(AST3201-A1-D24 only)

XM2A-0901 <made by OMRON Corp.>

(AST3211-A1-D24 only)

Recommended Jack Screw XM2Z-0073 <made by OMRON Corp.>

Recommended Cable Cover XM2S-0913 <made by OMRON Corp.>

Interfit Bracket #4-40 inch screws are used.

Pin #

RS422/RS485

(AST3201-A1-D24 only)

*1 RS485 is compliant with AST-3201A units with revision code “C” or later.

Revision (page 11)

RS485 (MPI only)

(AST3211-A1-D24 only)

Signal Name Meaning Signal Name Meaning

1 RDA Receive Data A(+) NC

⎯⎯

2 RDB Receive Data B(-) NC

⎯⎯

3 SDA Send Data A(+) LINE(+)

Line(+)

4 ERA Data Terminal Ready A(+) RS(RTS)

Request to Send

5 SG Signal Ground SG

Signal Ground

*2 In COM2 on the AST3211-A1-D24, the SG and FG terminals are isolated.

6 CSB Clear to Send B(-) 5V

5V External Output

*3*4

*3 The 5V output for Pin #6 is not protected against overcurrent. To prevent damage or unit

malfunctions, use only the rated current.

*4 When providing power via the Siemens Co.'s Profibus connector, power cannot be connected to the

Device/PLC.

7 SDB Send Data B(-) NC

⎯⎯

8 CSA Clear to Send A(+) LINE(-)

Line(-)

9 ERB Data Terminal Ready B(-) NC

⎯⎯

Shell FG

Frame Ground

(Common with SG)

FG Frame Ground

SEE