Omron CQM1H-SCB41 operation manual Appendix C, E5jK Digital Controller Read Protocol

Appendix C

E5jK Digital Controller Read Protocol

The E5jK Digital Controller Read Protocol reads and controls various parameters in remote mode for the Con- troller connected to the Serial Communications Board via RS-232C or RS-485 cable.

Structure of the Protocol

The following table shows the structure of the E5jK Digital Controller Read Protocol.

Sequence	Communications sequence		Function	Ladder interface
No.	name
				Send word	Receive word
				allocation	allocation
000	Read process value		Reads the process value.	Yes	Yes
001	Read set point during SP ramp		Reads the set point during SP	Yes	Yes
			ramp.
002	Read MV		Reads the MV (heating, cooling).	Yes	Yes
003	Read set point		Reads the set point.	Yes	Yes
004	Read alarm value		Reads alarm value 1, 2.	Yes	Yes
005	Read proportional band, integral		Reads the proportional band, inte-	Yes	Yes
	time, and derivative time		gral (reset) time, and derivative
			(rate) time
006	Read cooling coefficient		Reads the cooling coefficient.	Yes	Yes
007	Read dead band		Reads the dead band.	Yes	Yes
008	Read manual reset value		Reads the manual reset value.	Yes	Yes
009	Read hysteresis		Reads the hysteresis (heating,	Yes	Yes
			cooling).
010	Read control period		Reads the control period (heating,	Yes	Yes
			cooling).
011	Read SP ramp time unit and set		Reads the SP ramp time unit and	Yes	Yes
	value		SP ramp set value.
012	Read LBA detection time		Reads the LBA detection time.	Yes	Yes
013	Read MV at stop and PV error		Reads the MV at stop and the MV	Yes	Yes
			at PV error.
014	Read MV limits		Reads the MV limits.	Yes	Yes
015	Read input digital filter		Reads the input digital filter.	Yes	Yes
016	Read alarm hysteresis		Reads the alarm 1, 2 hysteresis.	Yes	Yes
017	Read input shifts		Reads the input shift limits.	Yes	Yes
018	Read level 0 parameters		Reads parameters in level 0.	Yes	Yes
019	Read level 1 parameters 1		Reads parameters in level 1.	Yes	Yes
020	Read level 1 parameters 2		Reads parameters in level 1.	Yes	Yes
021	Read level 2 parameters 1		Reads parameters in level 2.	Yes	Yes
022	Read level 2 parameters 2		Reads parameters in level 2.	Yes	Yes
023	General-purpose read		Reads the value of the specified	Yes	Yes
			parameter.
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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