Micromod Micro-DCI: 53SL6000 Single Loop Controller - Manual (Page 99)

Applicable parameter that may require configura-
tion change:
Section 5.6, ProG-do-inV1.
8.6.4 DO2 - Primary PV Low Alarm
Contact Out
D02 is closed (on) when the primary process vari-
able value is not within the loop 1 (cn.1) process
alarm limit 2 (PL2) setting.
Applicable parameter that may require configura-
tion change:
Section 5.6, ProG-do-inV2.
8.6.5 DI1 - Force Control Output
Contact Input
This is a closed contact or low active signal (0-1 V
dc). When a closed contact or 0-1 V dc signal is
present on this input, the control output value is
applied to the value of Ai7 (the control scheme D
input accepts the force control value and cS.d is
defaulted to select Ai7).
Applicable parameters that may require configura-
tion changes:
To enter a Force Output value in register Ai7:
Section 5.2, ProG-Ai-Ai.7 or oPEr-Ai7.
NOTE: If hard manual limiting
(conF-cn.1[cn.2]-hmL) is active, all output sources
including forced control output, will be controlled
by oh/oL (output high/output low). When using
forced control output as a safety output, do NOT
apply hard manual limiting, as it will override the
forced control output signal in manual
(deactivating hmL does not eliminate oh/oL in
automatic operation).
8.6.6 DI2 - Secondary Setpoint Enable
When a low signal (0-1 V dc) is present on this
input, it allows a value previously entered into the
conF-cn.1-b1 parameter to become the fixed set-
point. Factory default settings are assumed for this
control strategy; otherwise, the setpoint value may
not be determined only by the conF-cn.1-b1 pa-
rameter.
Applicable parameter that may require configura-
tion changes:
Section 7.7, conF-cn.1-b1
8.6.7 AO1 - Control Output
This is the 4-20 mA signal that drives the final
control element.
Applicable parameters that may require configura-
tion changes:
Primary:
Section 7.7, conF-cn.1-(oh, oL, hML, oSr, rSW,
rSV).
For control related parameters:
Section 7.7, conF-cn.1-(ir, iLr, Mr).
Sections 7.7, 9.2, 9.3 and 9.4, conF-cn.1-(Pb, tr,
td).
Limiting:
Section 7.7, conF-cn.2-(oh, oL, hML, oSr, rSW,
rSV).
For control related prompts:
Section 7.7, conF-cn.2-(ir, iLr, Mr).
Sections 7.7, 9.2, 9.3, and 9.4, conF-cn.2-(Pb, tr,
td).
8.6.8 SchM Selection
This control strategy is implemented with the con-
troller default settings and hLiM or LLiM (high or
low limiting, as applicable) selected from the SchM
prompt of the cS module.
Applicable parameter that requires configuration
change:
Section 7.6 - ProG-cS-(SchM = h.LiM or L.LiM, as
applicable).
53SL6000 Instruction Manual Section 8. Eight Control Strategies
8-12