Delta DVP-ES2/EX2/SS2/SA2/SX2/SE manual Special register Function, Modrw

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

Flag	Function	Action
	COM1 Data receiving completed. When data receiving of
	communication instructions is completed, M1314 will be ON. Users	System
M1314	can process the received data when M1314 is ON. When data	sets
		and user
	processing is completed, M1314 has to be reset by users.
		resets
	Supported communication instructions: RS / MODRW
	COM1 receiving error. M1315 will be set ON when errors occur and	System
M1315	the error code will be stored in D1250.	sets and
		user
	Supported communication instructions: RS / MODRW	resets

Special register	Function
D1036	COM1 (RS-232) communication protocol. Refer to the following table in
	point 4 for protocol setting.
	The specific end word to be detected for RS instruction to execute an
D1167	interruption request (I140) on COM1 (RS-232).
	Supported communication instructions: RS
D1121	COM1 (RS-232) and COM2 (RS-485) communication address.
	COM1 (RS-232) Communication time-out setting (unit: ms). If users set
	up time-out value in D1249 and the data receiving time exceeds the
D1249	time-out value, M1315 will be set ON and the error code K1 will be
	stored in D1250. M1315 has to be reset manually when time-out status
	is cleared.
D1250	COM1 (RS-232) communication error code.
	Supported communication instructions: MODRW

2.PLC COM2 RS-485:Associated flags (Auxiliary relays) and special registers (Special D) for communication instructions RS / MODRD / MODWR / FWD / REV / STOP / RDST / RSTEF /

MODRW.

Flag	Function	Action
	Retain communication settings. Communication settings will be
	reset (changed) according to the content in D1120 after every scan
	cycle. Users can set ON M1120 if the communication protocol	User
M1120	requires to be retained. When M1120 = ON, communication
		sets/resets
	settings will not be reset (changed) when communication
	instructions are being processed, even if the content in D1120 is
	changed.

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