Omron C200HE User Manual

If the C200H-OV001 Voice Unit is being used, the 1:N mode cannot be used with
the RS-232 port. In that case, either use the NT Link in 1:1 mode or use the 1:N
mode with the port on the communications board.

Refer to the documentation provided for the NT Link Interface Unit for details on
actual NT link applications.

This section explains how to use the Protocol Macro function.

The Protocol Macro function is a communications protocol that controls data
transfers with various communications devices and general-purpose compo-
nents equipped with RS-232C or RS-422/485 ports. The user can easily modify
the data transfer procedures (communications sequences) with OMRON’s Pro-
tocol Support Software and execute the communications sequences from the
ladder program with PMCR(––).

The Communications Boards come equipped with seven communications pro-
cedures. These standard sequences can be used as is or modified to meet the
requirements of a particular application.

Note Refer to the Communications Board Operation Manual for details on Commu-

nications Boards and the Protocol Support Software Operation Manual for de-
tails on the Protocol Support Software.

Only one device can be connected with an RS-232C connection. The RS-232C
cable can be up to 15 m long.

(RS-232C)

Port B

(RS-232C)

Port A

Basic protocol

RS-232C

15 m

Device with an
RS-232C interface

Basic protocol

RS-232C

15 m

Device with an
RS-232C interface