snap ethernet-based i/o units protocols and programming guide
snap ethernet-based i/o units protocols and programming guide
snap ethernet-based i/o units protocols and programming guide
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Serial Module Configuration—Read/Write<br />
Use this area to configure SNAP serial communication modules on the rack. Only two ports—the<br />
ports for a serial module in position 0 on the rack—are shown in the table. Ports for modules in<br />
other positions on the rack follow the same pattern <strong>and</strong> start on even 10 hex boundaries. See the<br />
table on page 112 for a list of module <strong>and</strong> port numbers.<br />
For important information on using these modules, see Opto 22 form 1191, the SNAP Serial<br />
Communication Module User’s Guide.<br />
Starting Address Length Type Description<br />
FFFF F03A 8000 4 UI Port A on serial module in position 0 on the rack: IP port number for<br />
access to serial port. Default is 22500.<br />
FFFF F03A 8004 4 UI Port A, position 0: Baud rate<br />
FFFF F03A 8008 1 UI Port A, position 0: Parity.<br />
None = 0x4E; even = 0x45; odd = 0x4F<br />
FFFF F03A 8009 1 UI Port A, position 0: Data Bits<br />
FFFF F03A 800A 1 UI Port A, position 0: Stop Bits<br />
FFFF F03A 800B 1 UI Port A, position 0: Hardware flow control. 1 = Yes, 0 = No<br />
FFFF F03A 800C 1 UI Port A, position 0: Send test message on powerup<br />
1 = Yes; 0 = No<br />
FFFF F03A 800D 3 -- Pad for alignment<br />
FFFF F03A 8010 4 UI Port B on serial module in position 0 on the rack: IP port number for<br />
access to serial port. Default is 22501.<br />
FFFF F03A 8014 4 UI Port B, position 0: Baud rate<br />
FFFF F03A 8018 1 UI Port B, position 0: Parity<br />
FFFF F03A 8019 1 UI Port B, position 0: Data Bits<br />
FFFF F03A 801A 1 UI Port B, position 0: Stop Bits<br />
FFFF F03A 801B 1 UI Port B, position 0: Hardware flow control. 1 = Yes, 0 = No<br />
FFFF F03A 801C 1 UI Port B, position 0: Send test message on powerup<br />
FFFF F03A 801D 3 -- Pad for alignment<br />
(Additional ports follow in order on even 10 hex boundaries. See port table, below.)<br />
FFFF F03A 8200 4 UI Port A, position 0: End-of-message characters. The brain can<br />
check for a string of up to four characters as the end-of-message<br />
indicator. [Example: 0x0D0A0000 looks for a 13 (hex 0D) followed<br />
by a 10 (hex 0A)]<br />
FFFF F03A 8204 12 -- Pad for alignment<br />
SNAP Ethernet-Based I/O Units Protocols <strong>and</strong> Programming Guide 111