Spectrum Controls 1769sc-IF8u - Manual (Page 46)

36 Compact IO ™ Universal Input module
operating range for the represented channel or sensor. The module
automatically resets (0) the bit when the under-range condition is cleared
and the data value is within the normal operating range. The Under-range
bit for the CJC sensor is contained in word 10, bit 13.
Note: The CJC temperature can be monitored using bits 0 through 11 in
input word 10. See table 4.1 for details.
M o d u l e M o d u l e M o d u l e M o d u l e M o d u l e
C o n f i g u r a t i o n C o n f i g u r a t i o n C o n f i g u r a t i o n C o n f i g u r a t i o n C o n f i g u r a t i o n
After module installation, you must configure operation details, such as
input type, data format, etc., for each channel. Configuration data for the
module is stored in the controller configuration file, which is both readable
and writable.
Jumper Settings
The module handles many input types and therefore requires the input path
be changed when applicable. The module contains jumpers which allow
the user to change the input path from current to a non-current path on a
channel by channel basis. The jumpers are labeled on the circuit board as
J8_1 through J8_4 and J9_1 through J9_4. When the jumpers are
configured across pins 2 and 3 a 250 ohm shunt resistance is applied to the
respective channel, which allows for a current type input to be used.
When the shunt is configured accross pins 1 and 2, the 250 ohm shunt
resistance is open, which allows for a non-current type input to be used.
Refer to the figures below for proper jumper placement.
CH0 CH1 CH4 CH5 CH2 CH3 CH6 CH7
J9_1 J8_1 J9_3 J8_3 J9_2 J8_2 J9_4 J8_4
Note: The module comes from the factory with all the jumpers set for
current type inputs.