Omron CQM1H-SCB41 Using Protocol Macros, Executing Communications Sequences, Error Codes

Using Protocol MacrosSection 5-7

Error Codes

The contents of the error codes are shown in the following table.

Code	Error contents	Protocol macro
		execution
0	No error	Executed
2	Sequence Number Error	Not executed
	The sequence number specified by the
	PMCR(––) instruction does not exist in the
	Board.
3	Receive Data/Write Area Exceeded Error	Execution stops after
	When data is written or read to the CPU Unit, the	the error occurs.
	specified area range was exceeded.
4	Protocol Data Syntax Error
	A code that cannot be executed occurs while the
	protocol macro was executed. (Example: A
	header occurs after a terminator.)
5	Protocol Macro Execution Error During Port	Execution stops after
	Initialization	the error occurs.
	This error occurs when the PMCR instruction is
	executed while the port is being initialized (i.e.,
	while the serial communications port is being
	restarted or while the serial communications
	mode in the PC Setup of the Serial
	Communications Board is being modified using
	the STUP instruction or the Programming
	Device).

5-7 Using Protocol Macros

5-7-1 Executing Communications Sequences

Use the PMCR(––) instruction to execute communications sequences.

PMCR(––) Instruction Specifications

Control data

First send word

First receive data storage word

Control Data: C

1500

C:

Digits 2 to 4 (bits 00 to 11):

Communications sequence number (000 to 999)

Digit 1 (bits 12 to 15): Port specifier

1:Port 1 (RS-232C)

2:Port 2 (RS-422A/485)

First Send Data Word: S S specifies the first word of the words containing the data required for sending.

S

S+1

:

:

S+n

15	00
Number of send words		Total number of words including S
Send data
:
:

85