Rockwell Automation 1771-ASB/E Remote I/O Adapter User Manual - Manual (Page 79)

Appendix
C
Publication 1771ĆUM001A-US-P - February 2000
Differences Between 1771ĆASB
Series A, B, C, D and E Remote
I/O Adapter Modules
Major differences between series are noted in the table below.
Table C.A
Major Differences Between 1771-ASB Series Adapters
1771-ASB Series A Series B Series C Series D Series E
Functional
Changes
Initial release Firmware change
Hardware and
firmware change
Firmware change
Added CE certification
Hardware change
Added C-Tick certification
Restrictions or
limitations
Supports only 1 or 2
slot addressing
Supports 1/2, 1 or 2 slot addressing
Hardware
Compatibility
Does not support 32
bit digital I/O
Does support 32 bit digital I/O
Does support 32 bit digital I/O
Can emulate series B adapter
Communication
Rate
57.6kbits/s
115.2kbits/s
57.6kbits/s
115.2kbits/s
230.4kbits/s
Certifications CSA Hazardous Class I, Div 2
CSA Hazardous Class I, Div 2
CE
Backplane Current 1.2A @ 5V dc 1.0A @ 5V dc
Chassis Distance
5,000ft @ 115.2kbits/s
10,000ft @ 57.6kbits/s
5,000ft @ 115.2kbits/s
10,000ft @ 57.6kbits/s
2,500ft @ 230.4kbits/s
Thermal
Dissipation
20.47 BTU/hr 17.06 BTU/hr
Power Dissipation 6W 5W