SDM-SIO1A and SDM-SIO4A Serial Input/Output Modules
18
TABLE 6-6. Communications Port Parameters RS-485 Half Duplex
SerialOpenFormat
Parity
No. Stop Bits
No. Data Bits
48
None
1
8
49
Odd
1
8
50
Even
1
8
51
None
1
8
52
Not used
53
Odd
2
8
54
Even
2
8
55
None
2
8
56
Not used
57
Odd
1
7
58
Even
1
7
59
1
None
1
7
60
Not used
61
Odd
2
7
62
Even
2
7
63
None
2
7
1
This mode is only supported if there is at least a one-bit delay between characters
received by the SDM-SIO1A.
TABLE 6-7. Communications Port Parameters
RS-232 Receive-Only Mode
SerialOpenFormat
Parity
No. Stop Bits
No. Data Bits
64
None
1
8
65
Odd
1
8
66
Even
1
8
67
None
1
8
68
Not used
69
Odd
2
8
70
Even
2
8
71
None
2
8
72
Not used
73
Odd
1
7
74
Even
1
7
75
1
None
1
7
76
Not used
77
Odd
2
7
78
Even
2
7
79
None
2
7
1
This mode is only supported if there is at least a one-bit delay between characters
received by the SDM-SIO1A.
