Allen Bradley 1785-V40L processor module

Module Type

Processor Module

Maximum User Memory

48,000 Words

Program Scan Time

0.5 milliseconds per 1,000 words (bit logic) and 2 milliseconds per 1,000 words (typical)

Communication Port

RS-232 Serial Port

I/O Rack Capacity

15 Racks

Extended-Local I/O Port Capacity

1 Port

Maximum Total I/O (Any Mix)

1920

Maximum Total Complementary I/O

1920 Inputs and 1920 Outputs

Maximum Analog I/O

1920

RIO Transmission Rates

57.6 kilobits per second, 115.2 kilobits per second, and 230 kilobits per second

Number of DH+ or Remote I/O Ports

2

Maximum Number of Extended Local I/O Chassis

16

Maximum Number of Remote I/O Chassis

60

Backplane Current Load

2.9 Amperes (Typical) and 3.5 Amperes (Maximum)

Operating within the PLC 5 family, the Allen Bradley 1785-V40L processor module is engineered to facilitate advanced control in automation setups. This module supports a maximum of 48,000 words in user memory, providing the necessary space for substantial programming tasks. The program scan times are efficient, measuring 0.5 milliseconds per 1,000 words for bit logic operations and 2 milliseconds per 1,000 words under typical conditions.

Equipped with an RS-232 serial port for communication, the 1785-V40L also encompasses the capability to connect with 15 I/O racks, thereby enhancing system expandability and allowing for a total I/O capacity of 1920 across any mixture of inputs and outputs. The module can efficiently accommodate up to 1920 inputs and outputs in complementary arrangements as well as support for up to 1920 analog I/O channels. RIO transmission rates are notably flexible, functioning at 57.6 kbps, 115.2 kbps, or 230 kbps.

Additionally, the module features two ports for DH+ or remote I/O communication, facilitating optimal data exchange across networks. The capacity for additional installations is considerable, permitting a maximum of 16 extended local I/O chassis and an impressive 60 remote I/O chassis. The overall weight of the unit is approximately 1.5 pounds. For electrical sourcing, the backplane current load is rated at 2.9 Amperes typically, with a maximum load of 3.5 Amperes, ensuring robust operation under varied conditions.

Q: What is the memory capacity of the 1785-V40L?

A: The 1785-V40L provides 48K words of user memory for PLC applications.

Q: How many I/O points does the 1785-V40L support?

A: The processor supports up to 1920 total I/O points.

Q: Which communication interfaces are available on the 1785-V40L?

A: The module includes RS-232 serial communication and dual DH+/Remote I/O ports.

Q: What are the supported Remote I/O transmission rates?

A: Supported RIO transmission rates are 57.6 kbps, 115.2 kbps, and 230 kbps.

Q: How many remote I/O chassis can the 1785-V40L support?

A: The processor can support up to 60 remote I/O chassis.

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