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The Figure below indicates an RTD connected to the RTD 1 terminal block, so the RTD
set-up screen indicates the default assignment is already completed.
There are three blank slots available so that additional RTDs can be assigned to this
output relay. Additional RTDs may be desired if a more exact temperature sampling for a
temperature-sensitive fluid is needed. If additional RTDs are assigned, the lowest RTD
value from the list will be used for control temperature.
Temperature Data
Transfer from RTD
Sensor to NGC-30
Controller
RTD → CRM/CRMS (same
circuit)
RTD → CRM/CRMS (another
circuit) → NGC-UIT →
CRM/CRMS (same circuit)
RTD → RMM2 → NGC-UIT →
CRM/CRMS
RTD → SES-RTD → PLI-
SES/SPC → NGC-UIT → CRM
RTD → SPC-P or SPC-W →
PLI-SES/SPC → NGC-UIT →
CRM
RTD → 700-TT → PLI-TT →
NGC-UIT → CRM
SES-CONT → PLI-SES/SPC
→ NGC-UIT → CRM
The RTD Mode, Control is automatically selected if an RTD is directly connected to the
same circuit. For all other RTDs assigned to that circuit, regardless of the source, the RTD
Mode of Control or Monitor can be selected. In Monitor Mode, the temperature values will
be monitored.
RTD
Connectivi
RS-485 Device
ty to first
RS-485
Device
CRM/CRMS (same circuit)
direct
CRM/CRMS (another
circuit)
direct
NGC-UIT
CRM/CRMS (same circuit)
RMM2
NGC-UIT
direct
CRM/CRMS
PLI-SES/SPC
NGC-UIT
via SES-RTD
CRM
PLI-SES/SPC
via SPC-P or
NGC-UIT
SPC-W
CRM
PLI-TT
NGC-UIT
via 700-TT
CRM
PLI-SES/SPC
via SES-
NGC-UIT
CONT
CRM
(No RTD)
RTD Modes
Control
Monitor
Continuit
y
X
--
--
X
X
--
X
X
--
X
X
--
X
X
--
X
X
--
--
--
X
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