Custom Relays (P110 to P113)
P110 RELAY ALLOCATION
Use this feature to alter the Relay Set Up (P100) relay/ point number association, to have
any relay operate based upon the operation of any Point Number.
When accessed, the Relay symbol is displayed in the Point Type field and the Relay
Number (corresponding to the DPL+ terminals) is displayed in the Point Number field.
e.g. To allocate Relay 3 to Point 1, with Relay Number 3 displayed, enter 1.
If a relay is allocated to more than one Point Number, when any Point Number (in the
allocation range) is in alarm, the relay de-energizes. If Point # 3 is set for "difference" or
"average" Operation (P001 = 4 or 5), one or more DPL+ relays may be allocated to Point # 3.
When Relay Allocation is altered, affected alarm (P101 to P104) parameters display
"ch" (changed), when accessed. Use the Relay A/B Setpoint (P112/P113) instead.
values: x (x = single Point Number (1-3) to be allocated to the displayed Relay Number)
x.y (x = first Point Number (1-3), y = last Point Number (1-3), in the range)
P111 RELAY FUNCTION
Use this feature if alternate relay function, designation, or operation is required.
When accessed, the Parameter Type display changes to the Relay symbol and the Point
Number display changes to the Relay Number (corresponding to the DPL+ terminals).
To enter a Relay Designation...
1. to display the Auxiliary Function symbol,
2. or to scroll access the desired relay designation and...
3.
When the Relay Function is altered, affected Alarm Parameters (P101 to P104) display
"ch" (changed) when accessed. Use the Relay A/B Setpoints (P112/P113) instead.
FUNCTION DESIGNATION OPERATION
Level LL,L,H, or HH similar to Standard Alarms but with Relay A/B Setpoints
In Bounds b1 or b2
*
alarms when level is between the Relay A/B Setpoints
Out of Bounds b1 or b2
*
alarms when level is not between the Relay A/B Setpoints
Rate r1 or r2
*
level rate of change alarm with Relay A/B Setpoints
Temperature not applicable alarm is activated by independent Relay A/B Setpoints
LOE not applicable relay de-energizes in the event of Failsafe Timer (P700) expiry
Cable Fault not applicable relay de-energizes under transducer short or opened condition
Pump not applicable with independent Relay A/B Setpoints for pump control
* The Relay Designation is not displayed but is included in the BIC-II (if used) data message.
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APPLICATION PARAMETERS
PL-508 39
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