3-10 Uson 628 Operator’s Manual
3.2.11 Program Selection
The Remote Program Selection option allows the user to remotely control the
selection of individual programs.
Each input controls a 24V relay as shown in Figure 3–6.
Figure 3–6: Program Selection Inputs
Binary Input Coding
The inputs are binary weighted where contact closure =1. Table 3–5 shows
example binary codes for program selection. Nominal current sink rating at 24V
DC is 10 mA per input.
Table 3–5: Binary Encoding for Program Selection
Program
E.10:2
4
E.6:2
3
E.7:2
2
E.8:2
1
E.11:2
0
Invalid
00000
100001
2
00
010
3
00
011
400100
500101
6
00
110
7
00
111
8
01
000
Input
ED
CBA