HORNER MODULES FOR GE FANUC PLCs - ANALOG INPUT
These Series 90-30 modules provide traditional analog output channels but incorporate +/-2000VDC isolation, channel-to-channel and channel-to-ground.
They feature four channels of output, with 14-bit (13-bit plus sign) resolution. Current (4-20mA) and voltage (+/- 10V) models are available. Both modules convert digital values (-32,000 to +32,000) residing in %AQ registers into analog signals. The %AQ values are set by the ladder logic program in the PLC CPU. Each channel may be set to "0" or "hold last state" when the PLC is taken out of RUN mode. This is accomplished with a configuration parameter in the configuration software. The output mode of each channel in the DAC420 may be set to 4-20mA or 0-20mA.