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Allen-Bradley 1024 Max Analog I/O 32 Kilowords 1785-L30B Ser E PLC 5/30 Enhanced PLC-5 Controller

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Allen-Bradley 1024 Max Analog I/O 32 Kilowords 1785-L30B Ser E PLC 5/30 Enhanced PLC-5 Controller

Large Image :  Allen-Bradley 1024 Max Analog I/O 32 Kilowords 1785-L30B Ser E PLC 5/30 Enhanced PLC-5 Controller

Product Details:

Place of Origin: USA
Brand Name: Allen Bradley
Model Number: 1785-L80B

Payment & Shipping Terms:

Minimum Order Quantity: 1
Price: negotiable
Packaging Details: New in original box
Delivery Time: 2-3 work days
Payment Terms: T/T, Western Union
Supply Ability: 100
Detailed Product Description
Brand: Allen Bradley Model: 1785-L80B
K: 48 Tpye: Redundancy Module
Place Of Origin: USA FW: K.2
High Light:

analog interface module

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plc power supply module

Allen-Bradley 1024 Max Analog I/O 32 Kilowords 1785-L30B Ser E PLC 5/30 Enhanced PLC-5 Controller


 
 

Technical specifications:
Manufacturer Rockwell Automation
Brand Allen-Bradley
Part Number/Catalog No. 1785-L30B
Module Type Standard Processor
Processor PLC-5/30
Max User Memory Words 32 Kilowords
Battery-Backed Static RAM Yes
EEPROM Program Backup Option (using 1785-ME16, -ME32, -ME64, and -M100) Yes
Protected Memory No
Max Total I/O 1024 (any mix) or 1024 in + 1024 out (complementary)
Max Analog I/O 1024
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 29
Max I/O Chassis Extended Local 0
Max I/O Chassis Universal Remote 28
RS-232-C/422-A/423- A Ports 1
Control Coprocessor Expansion Port Yes
 
 
 

About 1785-L30B

Programmable controller 1785-L30B is the main part of each enhanced control system based on the Allen Bradley PLC-5 series. The 1785-L30B merges local, extended and remote I/O modules on various types of communication interfaces into one control system suited for various processes. 1785-L30B has two built-in ports. Ports are marked as channel 1A and channel 1B, and both can function as remote I/O scanners, remote I/O adapters and DH+ communication interfaces. DH+ communication can work both for remote programming and monitoring of 1785-L30B, and for creating a peer-to-peer communication network between the other PLC-5 controllers. Remote I/O connection is used for real-time data exchange between the controller and I/O, operator interface, and other devices. On the front panel of the 1785-L30B controller, there is a 25-pin connector marked channel 0. This is an optically isolated EIA RS232C port. Channel 0 supports ASCII and DF1 full and half-duplex master protocols and half-duplex slave protocols. On the front panel, there is a green channel 0 communication indicator light. Near channel 0, there is an 8-pin mini-DIN connector marked as channel 1A, and a DH+ programming terminal connection parallel to it. There are two three-pin connectors that serve as communication ports. These three pin connectors are used for channels 1A and 1B, which can be configured as remote I/O scanners, remote I/O adapters or DH+ communication ports. Both channel 1A and channel 1B on 1785-L30B can function as remote I/O scanners or remote I/O adapter communications. Remote I/O Scanner Mode reads and writes I/O information between a controller and remote I/O device. In this mode, 1785-L30B is a supervisory controller for other controllers that are in adapter mode and remote I/O adapter modules. When channel 1A or 1B is in Remote I/O Adapter Mode, it controls its controller-resident local I/O while communicating with the supervisory controller via a remote link. On the 1785-L30B, the Data Highway Plus (DH+) link can function both on channel 1A and 1B. DH+ communication can be used for data transfer to other PLC-5 controller or other higher-level components of the control system. DH+ link can program multiple PLC-5 controllers. Maximum cable length for DH+ link depends on the transmission rate. It is crucial that all devices on a DH+ link are configured to communicate at the same transmission rate. 1785-L30B has several indicators on the front panel used for easy interaction with the user. Indicators are used for displaying various statuses of the controller. The indicator marked BATT displays the status of the battery. The indicator marked PROC indicates controller current mode, it is green when the controller is in RUN mode, and red when something is wrong. The FORCE indicator is amber when I/O forces are enabled. The COMM indicator is linked with channel 0. It is green when the channel is communicating. Channel 1A and 1B both have dedicated status indicator.

 

 

 

On the front panel of the 1785-L30B, there is a three-position key-switch for selecting controller mode. Each position corresponds to one mode of the processors. RUN mode is used for running controller program, enabling outputs. In RUN Mode, I/O can be forced, and data table values can be edited, and programs can be saved. In RUN Mode, it is impossible to create or delete a program or data file, edit online or change modes of operation via programming software. When the 1785-L30B processor is in Program Mode (PROG position of key switch), outputs are disabled, and ladder files, SFC files or data files can be created, modified and deleted. Download and upload transfers are possible with the memory module, and programs can be saved or restored. In program mode, the 1785-L30B processor does not scan the internal program, and mode of operation cannot be changed with programming software. The 1785-L30B processor's third mode is the Remote Mode, selected by moving the key switch to the REM position. In this mode, it is possible to choose between the three sub-modes Remote Program, Remote Test, and Remote Run. This selection works via programming software. When the processor is in Remote Run Sub Mode, outputs are enabled, and programs can be saved and restored and edited while operating. Remote Program Sub-Mode is same as Normal Program Mode. While in Remote Test Sub Mode, ladder programs can be executed with outputs disabled, but ladder programs and data files cannot be created or deleted. Programs can be saved, restored and edited while operating. The 1785-L30B has 32000 words of memory, and the controller RAM has battery backup. For program backup, an EEPROM module can be installed in the front panel slot. Various memory module capacities are available. The total number of I/O (including local I/O and universal remote I/O combined) is 1024 any mix, or 1024 inputs and 1024 outputs complementary, meaning that in order to use this much I/O, pairs of modules must have duplicate addresses. The maximum number of analog I/O is 1024. 1785-L30B can utilize a total of 29 I/O chassis, and among them, 28 can be universal remote I/O chassis. The backplane has a current load of 1785-L30B is 2.3 amps at 5 Volts. The 1785-L30B does not have the capability of connecting extended local I/O chassis.


 
 
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Contact person: Anna
E-mail: wisdomlongkeji@163.com
Cellphone: +0086-13534205279
 
 
 
 
 
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The 1785-L30B is a programmable controller from the PLC-5 systems which are manufactured by Allen-Bradley. The 1785-L30B has various ports which includes two ports which function as remote I/O scanners, remote I/O adapters, and DH+ communication interfaces. These ports are marked as channel 1A and channel 1B. The DH+ communication port works for remote programming and monitoring. The other port includes a 25-pin communication port which is used for communication. It is marked as channel 0 and the status of the communication process is displayed through the COMM LED on the front panel of the controller. The port is an optically-isolated EIA RS232C port which supports the ASCII and DF1 protocols.

 

The 1785-L30B has other indicators which include the BATT indicator that is used to indicate a low battery in the module. The PROC indicator indicates the current status of the processor, in the RUN mode, the indicator is green, and it is red when there are errors. The 1785-L30B is to be operated in an ambient temperature of 0 to 60 degrees Celsius in a non-condensing humidity range of 5 to 95%. The 1785-L30B has a backplane current of 2.5 Amps at 5 Volts DC. The 1785-L30B is to be installed and replaced by a person trained in the system to avoid any damage to the equipment. It is advised to follow the instructions mentioned by the manufacturer to prevent any improper connections and damages due to incorrect installation. The 1785-L30B has a maximum analog I/O of 1024. The maximum word memory of the controller is 32K words and the RAM has battery backup to prevent the loss of data in case of power failure.

 

 

 

 

 

 

 

 

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