Specifications

Publication 1794-SG002D-EN-P - May 2012
Select FLEX I/O Communication Adapters 13
The 1794-ASB2 supports only two FLEX I/O modules. The 1794-ASBLT is
only for use with classic PLC 5/15 or PLC 5/25 processors.
Other Network Communication
ATTENTION: Do not use these Remote I/O adapters with the Classic
PLC-5/15 or PLC-5/25 processors. Improper operation of the remote I/O may
result.
• 1794-ASB, Series E
• 1794-ASB2, Series D
• 1794-ASB2K, Series D
FLEX I/O Remote I/O Adapter Specifications
Attribute 1794-ASB, 1794-ASBLT
(1)
1794-ASB2
I/O module capacity 8 2
Communication rate 57.6 Kbps
115.2 Kbps
230.4 Kbps
Power consumption at 24V 7.9 W 4.2 W
Inrush current at 24V 23 A for 2 ms
Power dissipation, max 4.6 W @ 19.2V DC 3.4 W @ 19.2V DC
Thermal dissipation 15.7 BTU/hr @ 19.2V DC 11.6 BTU/hr @ 19.2V DC
Power supply 24V current load 330 mA 175 mA
Power supply input voltage, nom 24V DC
Operating voltage range 19.2…31.2V DC (includes 5% AC ripple)
DeviceNet cable Remote I/O: Belden 9463 or equivalent as specified in Allen-Bradley Approved Vendor List, publication ICCG-2.2
Allen-Bradley pin connector part no. 942029-03
Isolation voltage Tested @ 850V DC for 1 s, user power to system
Dimensions (HxWxD), approx 87 x 68 x 69 mm
3.4 x 2.7 x 2.7 in.
(1) The 1794-ASBLT is only for use with Class PLC 5/15 or PLC 5/25 processors.
ControlLogix processor
with 1756-DHRIO
modules
Universal Remote I/O Link
FLEX I/O
2711P
PanelView Plus
Terminal
PowerFlex 70
Drive
FLEX I/O
FLEX I/O
(1794-ASB)
1794-CE1 30.5 cm (1 ft) or
1794-CE3 91.4 cm (3 ft)
extender cable
(1794-ASB)