USER MANUAL
Table Of Contents
- 1791-6.5.1, Block I/O, User Manual
- Important User Information
- Summary of Changes
- Table of Contents
- 1 - Using This Manual
- 2 - Introducing Block I/O
- 3 - Installing Block I/O
- 4 - Configuring Your Block I/O for PLC Family Programmable Controllers
- 5 - Configuring Your Block I/O for SLC Controllers
- 6 - Troubleshooting
- A - Specifications
- Index
- Back Cover

Appendix
A
A1
Specifications
General Specifications
External power
200mA @ 24V dc; initial surge 5.5A for 10µsec
Environmental Conditions
Operating Temperature
Storage Temperature
Relative Humidity
32 to 131
o
F (0 to 55
o
C)
-40 to 185
o
F (-40 to 85
o
C)
5 to 95% noncondensing
Conductors Wire Size 14 gauge stranded (maximum)
3/64 inch insulation (maximum)
Power Dissipation IOBA: 13.42 Watts (maximum); 9.46 Watts (typical)
IOBB: 12.39 Watts (maximum); 8.73 Watts (typical)
Thermal Dissipation IOBA: 45.9 BTU/hr (maximum); 32.4 BTU/hr (typical)
IOBB: 42.4 BTU/hr (maximum); 29.8 BTU/hr (typical)
Remote I/O Isolation 850V dc (transformer) for 1 second
DH-485 Isolation 850V dc (optocoupler) for 1 second
Interconnect cable length RIO: PLC 57.6K 10,000 cable-feet
115.2K 5,000 cable-feet
230.4K 2,500 cable-feet
SLC 230.4K 2,500 cable-feet
DH-485 4000 ft (1219 meters)
Cable requirements RIO/DIO - Belden 9463
DH-485 - Belden 9842
1791-IOBA Input Specifications
Number of Inputs 8
Input type Sinking
Input voltage range 20.5 to 27.6V dc
On-state input current 6.3mA (minimum)
On-state input voltage 20.5V dc (minimum)
Off-state voltage 5.1V dc (maximum)
Off-state current 1mA dc (maximum)
Turn On time 1.5msec (maximum)
Turn Off time 1.0msec (maximum)