A-B 1794-ASB
The A-B 1794-ASB module is A Flex I/O communication adapter manufactured by Rockwell Automation, which belongs to the 1794 family of products. The adapter is a DIN rail mount device with a remote I/O (RIO) communication port for connecting the Flex I/O rack to a RI-enabled controller. It supports a variety of communication rates, including 57.6Kbps, 115.2Kbps, and 230.4kbps, and has built-in power indicato
rs, adapter activity indicators, adapter failure indicators, and local failure indicators. The module is compatible with a wide range of Allen-Bradley’s traditional and modern controllers such as PLC2, PLC3, PLC5, as well as the SLC500 automation platform and Logix controller platform. In addition, it can be used with third-party devices and i
ncludes a partner module 12.
Product parameters:
Communication rate: Support 57.6Kbps, 115.2Kbps and 230.4kbps2
Input voltage: 19.2-31.2VDC (but expected supply voltage range may be 4VC-11.31VDC, including 2% AC ripple, nominal supply is 5VDC) 2
Number of supported modules: Up to 8 Flex I/O modules can be installed (although up to 24 are mentioned in some messages) 23
Power consumption: A constant 1794 volt DC power input consumes 450 mA; Power consumption at 24.4 VDC is 6.31 watts; The power consumption at 2.15 volts DC is 7.31 BTU/ hour 2
Physical size: According to the published information, there are two different sizes mentioned, one is 1794x 4x 2 inches (possibly a mistake or misunderstanding), and the other is 132mm105mm52mm (i.e. about 5.21 inches 4.13 inches 2.05 inches) 24
Weight: 800g 4
Specifications:
Case: IP30 protection grade, corrugated aluminum reinforced case 4
Mounting method: 35mm DIN rail mounting 4
Working environment:
Operating temperature: -10-70℃ (optional wide temperature range -40~+85℃) 4
Relative humidity: ≤90% (non-condensing) 4