Rockwell Automation 1771-QB Linear Pos. - Manual (Page 82)

Formatting Module Data (WRITES)
Chapter 7
7Ć3
Parameter Control Word (word 1)
The parameter control word identifies the block as a parameter block and
provides configuration information common to both loops. You can also disable
the transducer interface, analog outputs, and discrete inputs by setting the
appropriate bits. If all three sections are disabled, you can test the
programmable controller program without connecting the wiring arm to the
module. Unused sections do not have to be powered.
Figure 7.2
Parameter Block Control Word
50001
Binary Position Format:
0 = Double Word
1 = Single Word
15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
1 0 0 0 0 0
Transducer Interface:
0 = Enabled
1 = Disabled
Analog Outputs:
0 = Enabled
1 = Disabled
Discrete Inputs:
0 = Enabled
1 = Disabled
Axes used:
01 = Axis 1
10 = Axis 2
11 = Both axes
Units:
0 = Inch
1 = Metric
Format:
0 = Binary
1 = BCD
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Identifies this as a
Parameter Block
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Stop/Start Enhancement:
0 = Disabled
1 = Enabled
Bits 0 and 1 – Axes Used
Bits 0 and 1 determine which axes are controlled by the module. You can use
either one separately, or both. The module performs error processing
independently for each axis. If it detects a format error for one axis, it discards
all new parameters for that axis.
Bit 2 – Inch/metric
Bit 2 selects between metric and imperial units.