PM8AI/ I V ISO
The Analog Input modules are supplied as either a current
input module (PM8AI/I) or a voltage input module (PM8AI/V).
The inputs are fully isolated from input to logic and between
inputs. This module is ideal for monitoring existing 4-20mA
current loops which are isolated from each other and cannot
be connected to a common point of reference.
The standard setting for the PM8AI/I module is 0 - 20mA
input current which represents an output value of 0 - 4095 (12
bits) in the corresponding Modbus register. To obtain an
output value of 0 to 4095 for an input signal of 4 to 20mA the
offset switch is switched on. This module can also be
configured for a 0 – 20.000mA input range or +/- 20.000mA
The same applies to the PM8AI/V module. An input voltage of
0 - 10Volts represents an output of 0 - 4095 and 2 volts would
give a reading of 819 ± 1LSB. To obtain an output value of 0
to 4095 for an input signal of 2 to 10V the offset switch is
switched on. This module can also be configured for a 0 –
10.000V input range or +/- 10.000V input.