Description
Main Features Simple Configuration: Equipped with additional configuration files and instructions, it can shorten the debugging time. There is also the ProSoft configuration generator for configuration. Powerful Communication Function: It has two serial ports, and each port can be configured as a master station or a slave station respectively. It supports the Modbus RTU mode (binary, with CRC - 16) and the ASCII mode (with LRC error checking), and can connect to various devices with the Modbus protocol. Excellent Data Processing Ability: It supports a data storage area of up to 10,000 words. Each Modbus port supports up to 250 commands. It supports the implementation of Enron and Daniel-style floating-point data and can handle various data types. Good Integration: The additional configuration file supports RSLogix 5000, which improves the integration in the CompactLogix system. The module serves as a collaborative processor, reducing the impact on the PLC scanning time. Complete Diagnostic Function: The diagnostic data is included in the RSLogix 5000 controller tags, and decisions can be made according to the working status of the nodes.
Technical Parameters
I/O Size: 60/120/240 - 16-bit integers.
Communication Parameters: The baud rate ranges from 110 to 115K. Parity check options include no parity, even parity, and odd parity. The data size is 7 or 8 bits, the stop bits are 1 or 2 bits, and the RTS timing delay ranges from 0 to 65,535 ms.
Electrical Parameters: The maximum current load is 500 mA @ 5 VDC.
Working Environment: The operating temperature ranges from 0°C to 60°C, the storage temperature ranges from -40°C to 85°C, and the relative humidity ranges from 5% to 95% (without condensation).
Application Fields Industrial Automation: On the production line, it realizes the communication between the PLC and various Modbus devices such as sensors and drivers to monitor and control the production process, improving production efficiency and product quality. Energy Management: In the power system, it can connect to smart meters, power monitoring devices, etc., to collect and analyze power parameters, helping to optimize energy distribution and management. SCADA System: As an interface module between the SCADA system and the on-site Modbus devices, it transmits the data of the on-site devices to the monitoring center, realizing the remote monitoring and management of the entire system. Process Control: In the process control systems of industries such as chemical engineering and petroleum, it connects various process instruments and controllers to achieve precise control and monitoring of parameters such as temperature, pressure, and flow rate.
Specifications
Configuration | ProSoft Configuration Builder | |
I/O Size | 60/120/240 - 16 bit integers | |
Communication | Baud Rate: 110 to 115K baud | |
Modbus Modes | RTU mode (binary) with CRC-16 | |
Floating Point | Floating point data movement supported, including configurable support for Enron, Daniel®, and other implementations | |
Modbus Function | 1: Read Coil Status | 15: Force (Write) Multiple Coils |
Modbus Master | ||
Command List | Up to 250 command per Master port, each fully configurable for function, slave address, register to/from addressing and word/bit count. | |
Polling of command list | Configurable polling of command list, including continuous and on change of state. | |
Status Data | Error codes available on an individual command basis. A slave status list is maintained per active Modbus Master port. | |
Modbus Slave | ||
Node Address | 1 to 247 (software selectable) | |
Status Data | Error codes, counters and port status available per configured slave port |
Hardware
Specification | Description | |
Dimensions | Standard 1769 Single-slot module | |
Current Load | 500 mA max @ 5 VDC | |
Operating Temp. | 32° F to 140° F (0° C to 60°C) | |
Storage Temp. | -40° F to 185° F (-40° C to 85° C) | |
Relative Humidity | 5% to 95% (with no condensation) | |
LED Indicators | OK - Module Status | |
Debug Port | 10/100 Ethernet Port (auto-negotiating) | |
App Ports (P1,P2) | RS-232, RS-485 or RS-422 | |
Shipped with Unit | 2 - RJ45 to DB-9M cables for application ports |
Allen-Bradley Related Products
1747-ACNR15 | 1756-L55 |
1747-ASB | 1756-L55M13 |
1747-BA | 1756-L55M14 |
1747-C10 | 1756-L55M16 |
1747-CP3 | 1756-L55M23 |
1747-DCM | 1756-L55M24 |
1747-FC | 1756-L61 |
1747-L511 | 1756-L61S |
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