Publication 1747-UM006B-EN-P - June 2003
4-4 Configuration
Logical Group Number (SW1-7,8)
SW1 switches 7 and 8 determine the starting logical group.
Valid starting logical group numbers are determined by the:
• addressing mode (2-slot, 1-slot, or 1/2-slot)
• specialty I/O mode (discrete or block transfer)
The default position is logical group zero as shipped from the factory.
If an invalid starting logical group number is selected, an error occurs.
DIP Switch SW2
Baud Rate (SW2-1,2)
SW2 switches 1 and 2 determine the baud rate the 1747-ASB module
operates at while communi cating across the RIO link.
The default is 57.6K as shipped from the factory.
41 2345678
SW1 SW2 SW3
1 23 5678 1 2345678
O
N
O
N
O
N
Specialty I/O Mode
I/O Module Keying
Addressing Mode
Last Chassis/PLC-3 Backup
Link Response
Processor Restart Lockout
Hold Last State
Baud Rate
Primary/Complementary Chassi
ASB Module Image Size
Logical Group Number
Logical Rack Number
ON
OFF
Reserved
Addressing Mode Specialty I/O Mode Valid Starting Logical
Groups
2-slot, 1-slot, 1/2-slot Block Transfer 0, 2, 4, 6
2-slot, 1-slot Discrete 0, 2, 4, 6
1/2-slot Discrete 0, 4
5
2345678
SW1
O
N
1 234 678
SW1
O
N
Group 0 Group 2
1 2345678
SW1
O
N
Group 4
1 2345678
SW1
O
N
Group 6
5
1
1
Baud Rate Maximum Cable Distance (Belden 9463)
57.6K baud 3048 meters (10,000 feet)
115.2K baud 1524 meters (5,000 feet)
230.4K baud 762 meters (2,500 feet)
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