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Registers and Variables
7.2.1. Bit Input (Read, integer)
This register is an 8 bit register that reads the 8 opto-isolated inputs on the control board
(refer to Figure 7-1). A bit set to zero in this register indicates that an input is being
pulled low. A bit set to one indicates a non active input (it is OFF). The "Bit to Input
Pin" correspondence for register REG:001 is shown in Table 7-2.
Table 7-2.
7.2.2. Bit Output (Read/Write, integer)
This register controls the 8 opto-isolated outputs on the control board (refer to Figure 7-
1). Writing a zero to a bit sets the output low (active on) and writing a one to a bit sets the
output high (in-active off). This is an 8 bit register with each bit assigned to one of the
eight outputs. The "Bit to Output Pin" correspondence for register REG:002 is shown in
Table 7-3.
Table 7-3.
7-4
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Bit Input for Register:001
Bit #
7
6
Input #
8
7
Figure 7-1.
Connector P2 Bit to Input/Output for Registers
Bit Output for Register:002
7
6
5
Bit #
Output #
8
7
6
Aerotech, Inc.
UNIDEX 100/U100i and Software
5
4
3
2
6
5
4
3
USER DEFINED INPUT #1 – 37
-12V – 36
ANALOG INPUT – 35
EXTERNAL INTERRUPT-N – 34
COMPT2 – 33
COMP2-N – 32
+12V – 31
5V – 30
OUTPUT 8 – 29
OUTPUT 6 – 28
OUTPUT 4 – 27
OUTPUT 2 – 26
OUTPUT COMMON – 25
INPUT 8 – 24
INPUT 6 – 23
INPUT 4 – 22
INPUT 2 – 21
INPUT COMMON – 20
U100 I/O Connector P2
4
3
2
5
4
3
1
0
2
1
19 – SETUP – N
18 – AUXILIARY OUTPUT
17 – ANALOG OUTPUT
16 – GROUND
15 – EXTERNAL RESET – N
14 – COMPT1
13 – COMP1-N
12 – USER DEFINED INPUT
#2
11 – LOAD 2
10 – LOAD 1
09 – OUTPUT 7
08 – OUTPUT 5
07 – OUTPUT 3
06 – OUTPUT 1
05 – INPUT 7
04 – INPUT 5
03 – INPUT 3
02 – INPUT 1
01 – SHIELD
1
0
2
1
Version 1.6
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Troubleshooting
