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Description
Allen-Bradley 1785-L60B PLC-5/60 Processor Module
The Allen-Bradley 1785-L60B serves as the primary 1785-L60B PLC-5/60 Processor Module utilized to execute programmable control processing and I/O communication tasks across PLC-5 DH+ / Remote I/O network platforms. The processor provides 64 kilowords of battery-backed SRAM, multi-port communication capability, and PLC-5 chassis control functions.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1785-L60B |
| Brand | Allen-Bradley |
| Origin | United States |
| Weight | 3.13 lbs |
| Power Consumption | Backplane current: 3.3 A at 5 VDC |
| Module Type | PLC-5/60 Processor Module |
| Product Line | PLC-5 |
| Processor | PLC-5/60 |
| Controller Memory | Up to 64 Kilowords |
| Memory Type | Battery-backed static RAM |
| EEPROM Program Backup | Supported with 1785-ME16, 1785-ME32, 1785-ME64, and 1785-M100 modules |
| Protected Memory | No |
| Maximum Total I/O | 3072 points (any mix) or 3072 inputs + 3072 outputs complementary |
| Maximum Analog I/O | 3072 |
| Maximum I/O Chassis Total | 93 |
| Maximum Universal Remote I/O Chassis | 92 |
| Maximum I/O Racks | 27 |
| Communication Ports | 4 x DH+ / Remote I/O (Adapter or Scanner), 1 x configurable serial port, 2 x programming terminals |
| Serial Communication | RS-232, RS-422A, RS-423 compatible |
| Supported Protocols | DF1, ASCII, Data Highway Plus (DH+), Remote I/O (RIO) |
| Control Coprocessor Expansion Port | Supported |
| Battery Type | 1770-XYC |
I/O Density Scaling and PLC-5 Communication Architecture
The 1785-L60B processor provides PLC-5 architecture functions for deterministic control execution through DH+ and Remote I/O communication networks. The controller supports high I/O density scaling with up to 3072 I/O points and configurable chassis expansion for distributed control installations.
The processor manages communication through multiple DH+/Remote I/O channels configured as adapter or scanner interfaces. Firmware-compatible memory expansion modules including 1785-ME16, 1785-ME32, and 1785-ME64 can be used for additional program storage capacity. The processor supports EEPROM program backup functions for offline program retention and transfer operations.
Frequently Asked Questions
Q: What memory type is used in the 1785-L60B processor?
A: The processor uses battery-backed static RAM with a maximum user memory capacity of 64 Kilowords.
Q: What communication interfaces are available on the 1785-L60B?
A: The module provides four DH+/Remote I/O ports, one configurable RS-232/RS-422A/RS-423 serial port, and two programming terminal connections.
Q: Does the 1785-L60B support EEPROM program backup?
A: Yes. EEPROM backup is supported through compatible 1785-ME16, 1785-ME32, 1785-ME64, and 1785-M100 memory modules.
Field Installation Guidelines
Install the 1785-L60B processor module into the designated PLC-5 chassis slot with the backplane power removed during insertion or removal procedures. Verify chassis addressing, communication channel configuration, and installed memory module compatibility before system startup.
Separate DH+, Remote I/O, and serial communication wiring from high-voltage power cables and high-current switching conductors. Apply shield grounding practices according to the installation environment and cable manufacturer requirements.
Before commissioning, verify processor battery condition, user memory status, I/O rack configuration, and communication node addressing. Confirm that connected I/O chassis and modules correspond with the configured PLC-5 application program.
Features
We welcome bulk orders and have a minimum order quantity of just one unit.
Upon request, we can provide all necessary documentation, including Certificates of Origin/Conformance and other required export documents.
For items in stock, we aim to deliver within 1-3 days after payment confirmation. Items with specified lead times will be delivered according to the quoted schedule.
We accept 100% T/T (Telegraphic Transfer) payment before shipping. For items with lead times, a 30% deposit is required upfront, with the remaining 70% due before shipment. For RMB transfers, please contact us if you have an agent in China.
We offer a standard one-year warranty on all new and original items. If you require an extended warranty, please contact us for additional cost details.
Your satisfaction is important to us. If you need to return an item, it must be done within 30 days of the order date. The product must be unused, unopened, and in its original packaging with all accessories included. Refunds are processed within 5-7 business days after we receive the returned item. Please note that shipping and related charges are non-refundable.
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