Catalogs > Automation Systems Catalog > Programmable Controllers > PLC-5 System > I/O Modules and Hardware
I/O Modules and Hardware
| I/O Adapter Modules |  |
I/O Chassis | |
1771 I/O Module Overview | |
Digital I/O Modules | |
Analog I/O Modules | |
| Specialty I/O Modules | |
Wiring Arms | |
Remote Termination Panels and Cables | |
Distributed I/O | |
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The PLC-5 / 1771 system is a modular system that requires a 1771 I/O chassis to contain the various modules. Chassis are available in sizes of 1, 2, 4, 8, 12, and 16 module slots.
The backplane provides a communication path between the I/O modules and either the processor module or the I/O adapter module.
1771 I/O Chassis Specifications
| Cat. No. | Description | No. I/O Slots |
Dimensions (HxWxD), Approx. | Weight | Mounting Type |
| 1771-A1B | I/O chassis for 1771 I/O modules | 4 slots | 315 x 229 x 193 mm (12.4 x 9.0 x 7.6 in) | 3.6 kg (8.0 lb) | Back-panel mount |
| 1771-A2B | I/O chassis for 1771 I/O modules | 8 slots | 315 x 356 x 193 mm (12.4 x 14.0 x 7.6 in) | 4.7 kg (10.3 lb) | Back-panel mount |
| 1771-A3B | I/O chassis for 1771 I/O modules | 12 slots | 339 x 484 x 217 mm (13.53 x 19.0 x 8.5 in) | 8.7 kg (19.1 lb) | 19-inch rack mount or back-panel mount |
| 1771-A3B1 | I/O chassis for 1771 I/O modules | 12 slots | 315 x 483 x 193 mm (12.4 x 19.0 x 7.6 in) | 5.7 kg (12.6 lb) | Back-panel mount |
| 1771-A4B | I/O chassis for 1771 I/O modules | 16 slots | 315 x 610 x 193 mm (12.4 x 24.0 x 7.6 in) | 6.7 kg (14.8 lb) | Back-panel mount |
| 1771-PSC | Power-supply chassis (for connecting power directly or through a cable to an I/O chassis). Slots for installation of power supplies and modules requiring only power from the backplane. | 4 slots | 311 x 203 x 180 mm (12.23 x 8.00 x 7.1 in) | 1.9 kg (4.1 lb) | Back-panel mount |
| 1771-AM1 | I/O chassis with integral remote I/O adapter and power supply (3A available for I/O modules) | 1 slot | 298 x 70 x 187 mm (11.75 x 2.75 x 7.375 in) | 1.4 kg (3.0 lb) | Back-panel mount |
| 1771-AM2 | I/O chassis with integral remote I/O adapter and power supply (3A available for I/O modules) | 2 slots | 298 x 130 x 187 mm (11.75 x 5.125 x 7.375 in) | 2.3 kg (5.0 lb) | Back-panel mount |
| Certifications⋆ | CSA Class I Div 2 Hazardous, FM Class I Div 2 Hazardous, UL, CE | ||||
| ⋆ When product is marked. See the Product Certification link at http://www.ab.com for Declarations of Conformity, Certificates, and other certification details. | |||||