62
Phone:(910) 392
‐
2490
Fax: (910) 392
‐
2123
416 Landmark Drive
Wilmington, NC 28412
www.easterninstruments.com
Data Received by PLC from HMI (Op onal)
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 Posi on 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 Sta
‐
tus (i.e. PLC enable, Manual/Auto Mode, Start/Stop, Percent/Engineering Units, Valve Stuck) is
mapped to I.Data[9].
Commands Transmi ed by the PLC to HMI (Op onal)
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 Mul ple Calibra on is mapped to O.Data[2], Remote Dynamic Calibra on 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/o
ff
is mapped to O.Data[5], Set Point is
mapped to O.Data[6], Selec on 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].
Tag Mapping
Data Sent
To the
PLC
Commands
Sent from
the PLC
Rate
Totaliza on
Zero Readback
Product
Remote Alarm
Current Temp.
Valve Posi on
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
