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The Allen-Bradley 1785-O5G module is an Allen-Bradley/Rockwell Automation PLC 5 series interface module. It is a coprocessor type of PLC 5 interface module. The 1785-O5G interface module supports up to 3072 analog I/O at a time. It is safe for use in all non-hazardous industrial environments and in hazardous industrial environments that have Pollution Degree 2 or Zone 2 ratings. The 1785-O5G interface module needs to be installed in an enclosure with at least an IP 54 environmental protection rating when it is used in Pollution Degree 2 and Zone 2 hazardous environments.
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| Manufacturer | Allen Bradley |
|---|---|
| Category | PLCs |
| Product Line | PLC 5 |
| Part Number | 1785-O5G |
| Weight | 2.38 lbs (1.08 kg) |
| Module Type | Coprocessor |
| Backplane Requirement | 2.5 Amperes at 5 Volts DC |
| Description | EEPROM |
| Function | Program Backup |
| For This Product | Standard PLC-5 Processors |
| Number of Words | 6 Kilowords SRAM |
| Max Analog I/O | 3072 |
| I/O Scan Time Per Rack | 10 ms at 57.6 kbits/s, 7 ms at 115.2 kbits/s, 3 ms at 230.4 mbits/s |
| Max I/O Chassis Total | 93 |
| Max I/O Chassis Extended Local | 0 |
| Max I/O Chassis Universal Remote | 32 Max. Per I/O Link |
| RS-232-C/422-A/423- A Ports | 1 |
| Control Coprocessor Expansion Port | Yes |
The Allen-Bradley 1785-O5G PLC 5 Coprocessor Module serves as a backup module. This module comes with an RS-232-C Port and the backplane current of this module is 2.7 A at 5V DC. This module has a maximum of 3072 analog I/O. The I/O Scan Times Per Rack of this module are 10 ms at 57.6 kbits/s, 7 ms at 115.2 kbits/s, and 3 ms at 230.4 mbits/s. The Allen-Bradley 1785-O5G is intended for use in a Pollution Level Industry Environment 2, in excessive Category II applications (as defined in the publication of IEC 60664-1). Please remember that this power supply can operate at an altitude of up to 6562 feet without derating. If you connect or disconnect the cable and the terminal block and if you install or remove the 1785-O5G when the power is on, an electrical arc may occur. This can cause injury, damage, or even an explosion in hazardous locations. Make sure the power is removed and that the area is not hazardous before continuing. The operating temperature is 0 to 60 °C (32 to 140 °F), the storage temperature is -40 to 85 °C (-40 to 185 °F), and the relative humidity is 5 to 95% without condensation. The Allen-Bradley 1785-O5G has an operating shock of 30g (3 pulses, 11 ms) and a nonoperating shock 50g (3 pulses, 11 ms). This module must be installed in an enclosure with at least IP54-level protection for operation in Zone 2 environments.
| Revision Part # | Also known as | |
|---|---|---|
| 1785-O5G Ser A | 1785-O5G/A, Series A, Rev A | |
| 1785-O5G Ser B | 1785-O5G/B, Series B, Rev B | |
| Don't see your particular revision? Contact us now. | ||
Allen Bradley PLC 5 Coprocessor, 2.7 Amperes at +5 Volts DC Backplane Requirement