1756-RM001B-EN-P, Using ControlLogix in SIL2 ... - Tuv-fs.com

6-16 ControlLogix I/O ModulesWiring ControlLogix AnalogInput ModulesIn general, good design practice dictates that each transmitter must bewired to separate input terminals on separate modules such that thechannel values may be validated by comparing the two within anacceptable range. Special consideration must be given in applying thistechnique, depending on the type of module being used. Thosedetails are shown in the following wiring diagrams.Wiring the Single-Ended Input Module in Voltage ModeIn addition to following the General Considerations when using AnyControlLogix Analog Input Module on page 6-13, make sure you usethe correct documentation (listed in Table 6.1 on page 6-3) to wire themodule.When operating in Single-ended voltage mode, all (-) leads of thetransmitters must be tied together. Figure 6.12 shows how to wire the1756-IF8 module for use in voltage mode.Figure 6.12 ControlLogix Analog Input Module Wiring in Voltage ModeCh0 +Ch0 +Ch0 – Ch0 –(+)(–)VoltageTransmitter A(+)(–)VoltageTransmitter B43368Publication 1756-RM001B-EN-P - October 2003