Description
1-2
SIMATIC 505–2556 Installation and Operation Guide
1.1 Front Panel Description
The
Sixteen Channel Thermocouple Input Module is a member of Siemens
Energy & Automation, Inc., family of I/O modules compatible with the
SIMA
TIC 505 programmable controllers. The SIMA
TIC 505–2556 is
designed to translate a J, K, R, S, T
, E, and L (DIN J) thermocouple or
millivolt input signal into an equivalent digital word which is then sent to
the programmable controller (PLC).
The SIMA
TIC 505–2556 Thermocouple Input Module features built–in
independent internal cold junction compensation and linearization for each
thermocouple input for T
ypes J, K, E, R, S, L, and T
. No external cold
junction compensation is required.
The Active LED is illuminated when the module is functioning normally
. If
the Active LED is not lit, refer to Chapter 3 for troubleshooting.
The SIMA
TIC 505–2556 uses a fixed wire press in connector to minimize
the effects of the connector mettalurgy on the accuracy of the measurement.
This connector provides wiring terminals for channels 1–16.
Figure 1-1 shows the front panel of the SIMA
TIC 505–2556.
Active
Led
Input T
erminals
for Channels 1-16
Figure 1-1 SIMATIC
505–2556 Fr
ont Panel Description
Active LED
Input T
er
minals for
Channels 1–16
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