GE EP-5261 User Manual

RSTI-EP Slice I/O
Serial Communication Module EP-5261
Function Block FB_RSTI_EP_5261
Handling Function Block FB_MBM_RTU_Master
Serial Communication Module EP-5261
Serial Communication Module EP-5261
The RSTi-EP Serial Communication (EP-5261) module provides extended
communication options. For example, devices (such as barcode scanners or
printers) can be integrated consistently in RSTi-EP systems using an RS-232,
RS-485, or RS-422 interface. The EP-5261 module presents a solution for
connecting the control cabinet to the field.
The data transfer rate can be parameterised between 300 and 11,5200 bps.
The process data length can be parameterised to be 8 or 16 byte. A
terminating resistor can be parameterised for the RS-485 and RS-422
interface respectively.
The communication status is indicated by two LEDs on the respective plug.
The module electronics supply the connected data terminal device with
power from the input current path (I
IN
) either with 5 V dc or 24 V dc. Both
supply voltage outputs are protected against over-current.
The module features a type plate, which includes identification information,
the key technical specifications, and a block diagram. Additionally, a QR code
allows for direct online access to the associated documentation. The
software for reading the QR code must support inverted QR codes.
Markers are available as accessories for labelling the equipment. Each I/O
module can be labelled to ensure clear identification when replacing
individual modules or electronic units.
The RSTi-EP station is usually installed on a horizontally positioned DIN-rail.
Installation on vertically positioned DIN rails is also possible.
Modules should to be allowed to de-energize for a minimum 10 seconds after
power down, prior to starting any maintenance activity.
Refer to the RSTi-EP Slice I/O User Manual (GFK-2958) for additional
information.
For power-feed (a software utility available on PME V9.00) requirements, refer
to the RSTi-EP Power Supply Reference Guide.
EP-5261 Module Features
• Spring style technology for ease of wiring
• DIN-rail mounted
• Double-click installation for positive indication of correct installation
• Supports indirect firmware update through the network monitor
• Supports replacement without shutting down the system
GFK-2992B
September 2016
© 2016 General Electric Company.
*
Indicates a trademark of General Electric Company and/or its subsidiaries. All other trademarks are the property of their respective owners.

GE EP-5261 Specifications

General

Brand	GE
Model	EP-5261
Camera	VGA
Standby Time	Up to 200 hours
FM Radio	Yes
Network	GSM
Battery	Li-Ion

Summary

Parameter Configuration

Overview of Editable Parameters

Lists editable parameters for serial communication, including operating mode, data bits, baud rate, and flow control.

Communication State Management

Status and Control Word Table

Details status and control word values for various communication actions like Init/Startup and Send data.

Serial Connection Guidelines

Installation in Hazardous Areas

Provides warnings and guidelines for installing the equipment in hazardous areas, including ATEX marking.

Function Blocks for Serial Communication

Serial Communication Function Blocks Overview

Introduces function blocks like FB_RSTI_EP_5261 and FB_MBM_RTU_Master for application development.

Invoking Serial and RTU Master Functions

Provides step-by-step instructions for importing and calling function blocks for serial and Modbus RTU communication.

FB_RSTI_EP_5261 Function Block

FB_RSTI_EP_5261 Functionality

Describes the FB_RSTI_EP_5261 function block for serial interface data handling and its full duplex support.

FB_RSTI_EP_5261 Variables

Output Variables and Errors

Lists and describes output variables, including status and error codes for FB_RSTI_EP_5261.

FB_MBM_RTU_Master Function Block

FB_MBM_RTU_Master Functionality

Describes the FB_MBM_RTU_Master function block for Modbus RTU communication with the serial interface.

Modbus Communication Parameters

Supported Modbus Function Codes

Lists and describes supported Modbus function codes (e.g., Read multiple coils, Force single register).

Modbus Parameter Interpretation

FB_MBM_RTU_Master Variables

Input Variables

Lists and describes the input variables for the FB_MBM_RTU_Master function block.

Input/Output Variables

FB_MBM_RTU_Master Outputs and Errors

Output Variables

Error Code Reference