1785-LT | Allen Bradley Controller Module

Description

Description: The Allen-Bradley 1785-LT is a classic PLC5 controller module. This controller is a PLC 5/15 controller that features 512 I/O of any combination; 512 inputs and 512 outputs using any combination of 16-channel or 32-channel modules. It has a built-in 6 K memory that is expandable up to 14K Words. Up to 12 Remote I/O racks may be connected to this controller and maximum of 4 local racks. It has built-in standalone scanner (local and remote I/O) adapter and Data Highway + (DH+) ports.

Technical Specifications for 1785-LT

Manufacturer	Rockwell Automation
Location	1771-I/O chassis, left-most slot
Program Scan time:	2 ms/K words (bit logic); 8 ms/K words (typical)
Battery:	1770-XY
Memory modules:	4K RAM expansion, 1785-MR; 8 K RAM expansion, 1785-MS; 8K EEPROM,1785-MJ
Embedded RAM:	6K Words; expandable up to 14K Words
I/O capacity:	512 I/O; 512 inputs and 512 outputs using 16 or 32-pt modules
Supported Remote I/O:	Up to 3 Remote I/O racks
Supported local I/O:	Up to 4 Racks (1 resident rack)
Product Description:	PLC5 Classic Programmable Controller
Brand	Allen-Bradley
Built-in communication:	One (1) standalone scanner (local and remote I/O) adapter; One (1) DH+
Hardware addressing:	2-slot; 1-slot; ½ slot
Part Number/Catalog No.	1785-LT
Keying	between 40 and 42; between 54 and 56

Module Type	Processor
Max Total I/O	512
Analog I/O	512
DH+ Channel	Yes
Remote I/O Channel	Yes
Number of Words	6 Kilowords SRAM (expands to 14 Kilowords)
Max Total I/O	3072 (any mix) or 3072 in + 3072 out (complementary)
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

The Allen-Bradley 1785-LT is a Programmable Logic Controller (PLC). This controller is specifically a PLC 5/15 processor that belongs to the larger family of classic PLC 5 controllers. The 1785-LT features support for installation of up to Four (4) local racks with One (1) rack being the resident rack. For Remote I/O configuration, this processor supports up to Three (3) RIO racks wherein up to Twelve (12) physical devices are supported. It has built-in communication interfaces such as standalone Scanner port for implementing local and Remote I/O (RIO) connection. Additionally, it also has a Data Highway Plus (DH+) communication port which can be used simultaneously with the RIO port to connect to a variety of devices such as Human Machine Interface (HMI), Supervisory Control and Data Acquisition (SCADA) as well as co-processors in the network for messaging functionalities. These ports may also be used with 3rd party, non-Allen-Bradley devices. The 1785-LT has an embedded memory amounting 6KWords which can be expanded up to 14K Words. It may also be installed with optional memory modules such as 4K RAM expansion with catalog number 1785-MR; 8 K RAM expansion with catalog number 1785-MS and 8K EEPROM with catalog number 1785-MJ.

With the equipped memory size, the 1785-LT is capable of handling up to 512 I/O of any combination or 512 inputs and 512 outputs in complimentary mode using any supported Sixteen (16) channel or Thirty-Two (32) channel I/O modules. 16-channel modules support 2-slot addressing while 1-slot addressing for 2-slot modules. IOIOIO I/O module configuration must be implemented as well to qualify the hardware configuration. If you set the switch to the ON position, when communication errors are detected, the outputs that are connected to this chassis remain in their final state to allow the movement of the machine to continue. It is recommended that you set Switch 1 to the OFF position to remove the output energy that is connected to this chassis when any errors are detected. The maximum user memory words of this module are 6K words and this is expandable to 10K or 14K. The operating temperature of the 1785-LT is 0-60 °C (32-140 °F). The storage temperature of this module is -40-85 °C (-40-185 °F). The relative operating and storage humidity is 5-95% without condensation. The Allen-Bradley 1785-LT has an operating shock of 30 g (3 pulses, 11 ms). The nonoperating shock is 50 g (3 pulses, 11 ms). This module has ESD immunity of 4 kV contact discharges. The Allen-Bradley 1785-LT also follows the Electromagnetic Compatibility (EMC) standards. The 1785-LT has also passed EN 50081-2 EMC - Generic Emission Standard for operation in a Part 2 - Industrial Environment.

The company focuses on DCS, PLC, robot, large servo four systems

The main products are various modules/cards, controllers, touch screens, servo drivers Company advantage: Supply imported original products, professional production of spare parts One year warranty, fast delivery time, complete supply !！！ ① 24 hours email response (12 hours); ② For shipment outside Asia, please contact the seller.

Main brands include: ABB, Bailey, GE, FOXBORO, Invensys TRICONEX, Bentley BENTLY, A-B Rockwell, EMERSON EMERSON, B&R, MOTOROLA, FUANC, REXROTH, KUKA, HONEYWELL, NI, DEIF, Yokogawa, WOODWARD WOODWARD, Ryan, SCHNEIDER SCHNEIDER, Yaskawa, MOOG, EPRO, PROSOFT and other major brands

【 Disclaimer 】 We sell new products and discontinued products, independent channels to buy such special products. Guizhou Yuanmiao Automation Equipment Co., Ltd. is not an authorized distributor, dealer or representative of the products featured on this website. All product names/product images, trademarks, brands and microlabels used on this Website are the property of their respective owners. Descriptions, depictions or sales of products with such names/images, trademarks, brands and logos are for identification purposes only and do not imply any association or authorization with any rights holder. This article is from the official website of Guizhou Yuanmiao Automation Equipment Co., LTD. Please attach this link：http://www.ymdcs.com/Allen-Bradley/