Omron CQM1H-SCB41 operation manual Appendix G, E5jJ Temperature Controller Protocol

Appendix G

E5jJ Temperature Controller Protocol

The E5jJ Temperature Controller Protocol performs various settings and controls in remote mode for the Tem- perature Controller connected to the Serial Communications Board via RS-232C or RS-422A/485 cable.

Note Negative values cannot be written. All values must be set as unsigned BCD.

Structure of the Protocol

The following table shows the structure of the E5jJ Temperature Controller Protocol.

Sequence	Communications	Function	Ladder interface
No.	sequence name
			Send word	Receive word
			allocation	allocation
200	Select remote mode	Switches the Controller to remote mode.	Yes	No
201	Select local mode	Switches the Controller to local mode.	Yes	No
202	Select backup mode	Switches from set point write mode to back-	Yes	No
		up mode.
203	Select RAM write	Switches from set point write mode to RAM	Yes	No
	mode	write mode.
204	Save set point	Saves the set point.	Yes	No
205	Write parameters 1	Writes the set point, alarm value 1, alarm	Yes	No
		value 2, and heater burnout alarm value.
206	Write parameters 2	Writes the proportional band, integral time,	Yes	No
		and derivative time.
207	Write input shift value	Writes the input shift value.	Yes	No
208	Read parameters 1	Reads the set point, alarm value 1, alarm	Yes	Yes
		value 2, and heater burnout alarm value.
209	Read parameters 2	Reads the proportional band, integral time,	Yes	Yes
		and derivative time.
210	Read input shift value	Reads the input shift value and writes it in	Yes	Yes
		IOM.
211	Read output value	Reads the output value and stores it in IOM.	Yes	Yes
212	Read process value	Reads the process value and stores it in	Yes	Yes
		IOM.
213	Read set point limit	Reads the set point limits and stores them in	Yes	Yes
		IOM.
214	Read heater current	Reads the heater current and stores it in	Yes	Yes
		IOM.
215	Read initial status	Reads the initial status and stores it in IOM.	Yes	Yes
216	General-purpose write	Writes the specified parameter by setting a	Yes	No
		header code.
217	General-purpose read	Reads the specified parameter by setting a	Yes	Yes
		header code.

Note Ladder Interface Settings
YES:	User settings are required for the 2nd or 3rd operands of PMCR.
NO:	Send word allocation:	Set the constant 0000 for the 2nd operand (S).
	Receive word allocation:	Set a dummy word (e.g., DM 0000) address for the 3rd operand (D).

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