I/O modules • 179
Analog Inputs 750-462, /000-XXX
Modular I/O System
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In order to compensate the offset voltage at the clamping point, a cold junction
thermocouple compensation calculation is carried out. The circuit contains a
temperature measuring sensor at the ‘CAGE CLAMP
’ connection and takes
into account the temperature offset voltage when calculating the measured
value.
You can find the PNs for the different sensor types for 750-462 in the follo-
wing table.
Operating mode and Temperature range:
Operating mode
Temperature Range
Item-No.:
Type K
-100°C...1370°C (Standard)
750-462
Type S
0°C...+1700°C
750-462/000-001
Type T
-100°C...+400°C
750-462/000-002
mV-Meter
-120 mV...+120 mV
750-462/000-003
Type J
-100°C...+1200°C
750-462/000-006
Type B
600°C...+1800°C
750-462/000-007
Type E
-100°C...+1000°C
750-462/000-008
Type N
-100°C...+1300°C
750-462/000-009
Type R
0°C...+1700°C
750-462/000-010
Type U
-25°C...+600°C
750-462/000-011
Tab 4-1:Operating mode, Temperature range and Item number of the variations
Attention
The operating mode as mV meter in the range of -120mV to +120mV is only
available with hardware version X X X X 3 A 0 2- - - - and above.
In older versions, the operating mode as mV meter is in the range of 0mV to
120mV!
LED functions:
Green LED: Function
ON: Normal
OFF: Watchdog-Timer Overflow
If the PLC does not receive data for 100 ms the green LED
turns off
Red LED: Error
ON: Over- or underrange
OFF: voltage is in the measuring range