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Data Sent
Commands
Sent from
the PLC
Data Received by PLC from HMI (Optional)
There are 10 input tags, I.Data[0] ‐ I.Data[9]. As shown in the diagram above, Rate is mapped
to I.Data[0], Total is mapped to I.Data[1], Zero Readback is mapped to I.Data[2], Product is
mapped to I.Data[3], Remote Alarm is mapped to I.Data[4], the meter's current temperature is
mapped to I.Data[5], the Integrated Control Valve's Position in Percent is mapped to I.Data[6],
the Set Point for the read back register (in Percent) is mapped to I.Data[7], the Set Point for
the read back register for Set Point (In Engineering Units) is mapped to I.Data[8] and the
Status (i.e. PLC enable, Manual/Auto Mode, Start/Stop, Percent/Engineering Units, Valve
Stuck) is mapped to I.Data[9].
Commands Transmitted by the PLC to HMI (Optional)
There are 9 output tags, O.Data[0] ‐ O.Data[6]. As shown in the diagram above Remote Reset
(Resets the total) is mapped to O.Data[0], Remote Zero (Resets the Zero) is mapped to O.Data
[1], Remote Multiple Calibration is mapped to O.Data[2], Remote Dynamic Calibration is
mapped to O.Data[3], Remote Alarm Target (lets you remotely set the alarm's target) is
mapped to O.Data[4], Start/Stop, or process on/off is mapped to O.Data[5], Set Point is
mapped to O.Data[6], Selection of Manual/Auto Mode is mapped to O.Data[7] and a clean ICV
feature is mapped to O.Data[6]. Please note the units as expressed in "Status" bit I.Data [5].
416 Landmark Drive
Wilmington, NC 28412
To the
PLC
www.easterninstruments.com
Tag Mapping
42
Rate
Totalization
Zero Readback
Product
Remote Alarm
Current Temp.
Valve Position
Setpoint %
Setpoint ENG
Status
Remote Reset
Remote Zero
Remote mCal
Remote dCal
Remote Alarm
Start/Stop Valve
PID#1 Setpoint
Manual/Auto Select
Clean ICV
Phone:(910) 392‐2490
Fax: (910) 392‐2123
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