Rockwell Automation 61C350 2-In/2-Out 0-10 Volt Analog Rail Module - Manual (Page 28)

4Ć6
Analog Rail Module with AutoMate Remote I/O Head (Local Head Mode Only)
The following sample configuration shows one Analog Rail module connected to
an AutoMate Remote I/O Head:
MSLT DROP TYP RSLT CARD CH0 REGISTER CH1 REGISTER CH2 REGISTER CH3 REGISTER
ă2 ă0 RHD LHD ăăă0Ć3 NUNU NU
Figure 4.6Ć Sample Configuration for Analog Rail Module
with AutoMate Remote I/O Head
4.1.2 AutoMate Programming in Rail Mode
In Rail mode, the Analog Rail module is imaged in one I/O register of
the processor. Data from one of the four channels will occupy the
register as a function of the channel select bits. The active channel
is updated at the end of each scan. For input channels, the two
channel select bits in the register must be set to the appropriate
input channel number. After the I/O update, the register contains the
data in the format shown in figure 4.7. For output channels, the data
in the register must be in the format shown in figure 4.8 prior to the
I/O update.