Omron CP - PROGRAMMING MANUAL 05-2007 - Page 839

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Serial Communications Instructions Section 3-23
3-23-2 PROTOCOL MACRO: PMCR(260)
Purpose Calls and executes a communications sequence registered in a CJ-series
Serial Communications Unit.
This instruction can be used in the CP1H CPU Units only. It cannot be used in
the CP1L CPU Units. If PMCR(260) is used in a CP1L CPU Unit, Error Flag
(ER) will be turned ON.
Note A CJ Unit Adapter is required to use CJ-series Serial Communications Units.
Ladder Symbol
Variations
Applicable Program Areas
Instructions Mode Communications ports
TXD(236) and
RXD(235)
No-protocol
(custom)
Serial Port on a Serial Communications Option Board
TXDU(256) and
RXDU(255)
No-protocol
(custom)
Serial Port of a CJ-series Serial Communications Unit (Version 1.2 or later)
PMCR(260) Protocol macro Serial Port of a CJ-series Serial Communications Unit
CP1H CPU Unit
RXD
TXD
Serial Communications Option Board
TXDU/RXDU
CJ-series Serial
Communications Uni
t
CP1H CPU Unit
RXD
TXD
CP1H CPU Unit
PMCR
CJ-series Serial
Communications Unit
Receive
Send
PMCR(260)
C1
C2
S
R
C1: Control word 1
C2: Control word 2
S: First send word
R: First receive word
Variations Executed Each Cycle for ON Condition PMCR(260)
Executed Once for Upward Differentiation @PMCR(260)
Executed Once for Downward Differentiation Not supported.
Immediate Refreshing Specification Not supported.
Block program areas Step program areas Subroutines Interrupt tasks
OK OK OK OK