Delta DVP-ES2/EX2/SS2/SA2/SX2/SE manual M1130, M1126, Value Error Description

DVP-ES2/EX2/SS2/SA2/SX2/SE Operation Manual - Programming

6.When RS instruction is applied for communication between PLC and peripheral devices on COM2 RS-485, usually STX (Start of the text) and ETX (End of the text) have to be set into communication format. In this case, b8~10 of D1120 should be set to 1, so that users can set up STX/ETX as user-defined or system-defined by using M1126, M1130, and D1124~D1126. For settings of M1126 and M1130, please refer to the following table.

			M1130
		0		1
		D1124: user defined		D1124: H 0002
	0	D1125: user defined		D1125: H 0003
M1126		D1126: user defined		D1126: H 0000（no setting）
		D1124: user defined		D1124: H 003A（’:’）
	1	D1125: user defined		D1125: H 000D（CR）
		D1126: user defined		D1126: H 000A（LF）

7.Example of setting communication format in D1120: Communication format:

Baud rate: 9600, 7, N, 2

STX : “: “

ETX1 : “CR”

ETX2 : “LF”

Check to the table in point 4 and the set value H788 can be referenced corresponding to the baud rate. Set the value into D1120.

b15 b0

D1120 0 0 0 0 0 1 1 1 1 0 0 0 1 0 0 0

0	7	8	8
N/A

M1002

MOV H788 D1120

When STX, ETX1 and ETX2 are applied, care should be taken on setting the ON/OFF status of M1126 and M1130.

8.D1250(COM1)、D1253(COM3) communication error code:

Value	Error Description
H0001	Communication time-out
H0002	Checksum error
H0003	Exception Code exists
H0004	Command code error / data error

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