GE EP-5261 Bedienungsanleitung

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

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 (IIN) 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

*Indicates a trademark of General Electric Company and/or its subsidiaries. All other trademarks are the property of their respective owners.

2RSTi-EP Slice I/O Serial Communication Module

GFK-2992B

Ordering Information

Module Description

EP-5261 RSTi-EP Slice I/O Serial Communication module

Specifications

Item EP-5261 Specification

System Data

Data

Process, parameter, and diagnostic data depend on the network adapter used

Interface

RSTi-EP system bus

System bus transfer rate

48 Mbps

Serial Interfaces

Number

Type

RS-232, RS-485, RS-422,

parameterisable

Transfer Rate

300 – 11,5200 Bps, parameterisable

Supply voltage

5 V dc or 24 V dc

Current of power supply output

500 mA max

Standards RS232

DIN 66020, DIN 66259, EIA-RS232C, CCITT V.24 / V.28

Standards RS485/RS422 DIN 66259 part 1 and 3, EIA-RS422/485, CCITT V.11

Terminating resistor

RS485/RS422

120 Ω, parameterisable

Short-circuit-proof

Yes

Module diagnosis

Yes

Individual channel diagnosis

Yes

Supply

Supply voltage

20.4 V – 28.8 V

Current consumption from

system current path ISYS

8 mA

Current consumption from input

current path IIN

16 mA + Load

General Data

Operating temperature

-20 to +60°C (-4 to +140 °F)

Storage temperature

-40 to +85°C (-40 to +185 °F)

Air humidity (operation/transport)

5 to 95%, noncondensing as per IEC 61131-2

Width

11.5 mm (0.45 in)

Depth

76 mm (2.99 in)

Height

120 mm (4.72 in)

Weight

92 g (3.25 oz)

For public disclosure

RSTi-EP Slice I/O Serial Communication Module 3

GFK-2992B

Current Demand for Analog Output Modules

Product

SYS

OUT

EP-5261

8 mA

16 mA + Load

SYS

IIN

IOUT

Current consumption from the system current path

Power consumption from input current path

Power consumption from output current path

Current demand of the connected sensors

Current demand of the connected actuators

Must be included when calculating the power supply

LEDs

LED

EP-5261 Status

Module

Status

Green: Communication over the system bus

Red: Collective error diagnostic

1.1 Yellow:RS-232 parameterised

Yellow flashing:Data is being received

1.2 Yellow:RS-232 parameterised

Yellow flashing:Data is being transmitted

1.3

1.4

2.1

2.2

2.3

2.4

3.1

3.1 - 3.4 Yellow: RS-422 parameterised

3.1 + 3.2 Off, 3.3 + 3.4 Yellow: RS-485 parameterised

3.2

3.3

Yellow flashing: Data are being recieved

3.4

Yellow flashing: Data are being transmitted

4.1

Green: Supply voltage +5 V dc

4.2

4.3

Green: Supply voltage +24 V dc

4.4

For public disclosure

4RSTi-EP Slice I/O Serial Communication Module

GFK-2992B

Overview of Editable Parameters

Description

Options1

Default

Operating mode

Disabled (0) / RS232 (1) / RS485 (2) / RS422 (3)

Disabled

Data bits2

7 Bit (0) / 8 Bit (1)

8 Bit

Baud rate

300 (0) / 600 (1) / 1200 (2) / 2400 (3) / 4800 (4) / 9600 (5) / 14400 (6) /

19200 (7) / 28800 (8) / 38400 (9) / 57600 (10) / 115200 (11) 9600

Stop bit

1 Bit (0) / 2 Bit (1)

1 Bit

Parity

None (0) / Even (1) / Odd (2)

None

Flow control

None (0) / CTS/RTS (1) / XON/XOFF (2)

None

XON character

0 ... 255

XOFF character

0 ... 255

Terminating resistor

RS-485/422 Off (0) / On (1) Off

Process data length

16 Byte (1)

16 Byte

1) Values in brackets for EtherCAT and Modbus-TCP

2) Option 7 Bit works only in combination with a parity (even or odd)

For public disclosure

RSTi-EP Slice I/O Serial Communication Module 5

GFK-2992B

Diagnostic Data

Name

Bytes

Bit

Description

Default

Error indicator 0

Module error

Internal error

External error

Channel error

Error

Reserved

Parameter error

Module type 1

Module Type 0x05

Reserved

Error byte 2

0-7

Reserved

Error byte 3 3

0-2

Reserved

Internal diagnostic FIFO full

4-7

Reserved

Channel type 4

Channel type 0x79

Diagnostic bits per

channel 5 Number of diagnostic bit per channel 0

Number of channels

Number of similar channels per module

Channel error

7-10

0-31

Reserved

Time stamp

43-46

Time stamp [μs] (32 bit)

For public disclosure

6RSTi-EP Slice I/O Serial Communication Module

GFK-2992B

Data Transfer

The process data length can be parameterized to be 8 or 16 Bytes. Byte 0 is used for status and diagnosis, Byte 1 for the

data segment length, and the remaining 6 or 14 Bytes are user data.

Process input data: The data sent from the serial device are written into the receive memory of the module. As soon as

the SPS request results in that RX_CNT is not equal RX_CNT_ACK, the data will be sent in segments via the fieldbus

coupler to the PLC. The successfully data transfer will be acknowledged to the module.

The receive memory can safe a maximum of 255 Bytes. A software handshake (XON/XOFF) or a hardware handshake

(RTS/CTS) can be parameterised using the flow control, so that an alarm will warn against a buffer overflow.

Process output data: The data sent from the PLC via the fieldbus coupler are written into the transmission memory of

the module. The module is continously checking if data is ready to be sent or a data transfer to the device has

completed successfully. Not until then will the next data will be transferred.

Process Input Data

Byte

Format

Name

Bit

Description

Notes

IB0 Word Status and

Diagnosis

IX0.0 Data in the receive

memory

RX = 0: Receive memory is empty

RX = 1: A telegram or telegram

segment in the receive memory is

ready for transmission.

IX0.1 Receive memory

nearly full

Only 10 characters are left in the

receive memory. XOFF will be set if

parametrerised.

IX0.2

Not used

IX0.3 RX_CNT

The RX_CNT value is assigned to each

data segment of the process input

data while transmission. The sequence

or the RX_CNT values is:

Binary: 00, 01, 10, 11, 00, ...

Decimal: 0, 1, 2, 3, 0, ...

A faulty data seqence indicates

missing data segments.

IX0.4 RX_CNT

IX0.5 TX_CNT_ACK

The TX_CNT_ACK value is a copy of the

TX_CNT value, which has been

transferred together with the last data

segment of the process output data.

TX_CNT_ACK acknowledges that the

data has been taken over successfully.

IX0.6 TX_CNT_ACK

IX0.7 STAT

STAT = 1: Communication with the

device is without fault.

STAT = 0: Faulty communication with

the device.

IB1 Word

Length of the

data segment

/ of the

subsequent

diagnosis data

RX Length of the data / diagnosis data in

this frame

IB 2 ... IB

Received data

User data of the

transferred telegram

segment

For public disclosure

RSTi-EP Slice I/O Serial Communication Module 7

GFK-2992B

Process Output Data

Byte

Format

Name

Bit

Description

Remarks

QB0 Word Status and

Diagnosis

IX0.0 RXBUF FLUSH

Bit 0: RXBUF FLUSH

The receive memory can be scrubbed using

this bit.

STATRES = 1: A requirement with RXBUF FLUSH

= 1 will be ignored.

STATRES = 0: The receive memory will be

scrubbed with RXBUF FLUSH = 1.

IX0.1 TXBUF FLUSH

Bit 1: TXBUF FLUSH

The emission memory can be scrubbed using

this bit.

STATRES = 1: A requirement with TXBUF FLUSH

= 1 will be ignored.

STATRES = 0: The emission memory will be

scrubbed with TXBUF FLUSH = 1.

IX0.2 RX_HWBUFFER

Bit 2: DisableSend_TX_HWBUFFER

This bit controls the hardware emission

memory:

DisableSend_TX_HWBUFFER = 0: The hardware

emission memory is released. A character

(Byte) will be sent as soon as it reaches the

buffer.

DisableSend_TX_HWBUFFER = 1: The hardware

emission memory is locked. Characters (Bytes)

will only be sent, when

DisableSend_TX_HWBUFFER is set to 0 again.

IX0.3 TX_CNT

The TX_CNT value is assigned to each data

segment of the process output data. The

sequence or the TX_CNT values is:

Binary: 00–>01–>10–>11–>00...

Decimal: 0–>1–>2–>3–>0...

A faulty data sequence indicates missing data

segments.

IX0.4 TX_CNT

IX0.5 RX_CNT_ACK

RX_CNT_ACK must include a copy of the

RX_CNT value. The RX_CNT value has been

transferred together with the last data

segment of the process input data.

RX_CNT_ACK must be set in analogy with

RX_CNT (in the status byte). It indicates that the

data segment has been transferred

successfully by using RX_CNT and enables to

receive new data.

IX0.6 RX_CNT_ACK

IX0.7 Communication

Status

The input data status bit STAT will be reset

using this bit. When changing from 1 to 0

(falling edge) STAT will be reset from 0 to 1.

STAT = 0: All changes in the data fields

TX_BYTE_CNT, TX_CNT and RX_CNT_ACK will be

ignored. The receive or emission memory can

be scrubbed using RXBUF FLUSH or TXBUF

FLUSH respectively.

STAT = 1 or changing from 0 to 1: The buffers

cannot be scrubbed.

QB1 Word

Length of the

data segment

QB 2 ... QB 7

QB 2 ... QB 15

Transmission

data

User data of the

transferred

telegram segment

For public disclosure

8RSTi-EP Slice I/O Serial Communication Module

GFK-2992B

Enabling the Data Transfer

There are ways to announce the communication module to the control. Using the test mode, you only copy

the input data into the output data of the module so the received data will be sent again. Or, select one of the

function blocks provided by your engineering tool. For programming, refer to the following schemes

showing the sequences for receiving and transmission.

SPS application error

Segment-sequence error

Scheme of the Receiving Sequence Scheme of the Transmission Sequence

For public disclosure

RSTi-EP Slice I/O Serial Communication Module 9

GFK-2992B

The status and control word values during various states of communication are provided in the following table.

Action

Input Byte 0 (Status) of Module

Input

Byte 1

(length

of RX

byte

seg.)

Output byte 0 (control) off the module

Output

byte 1

(length

of TX

byte

seg.)

Notes

Stat TX_CNT_ACK RX_CNT STATRES RX_CNT_ACK TX_CNT

Init/

Startup 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

After

powerup,

module is

ready for

communi-

cation

Activate

communi-

cation

1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0

PLC is

ready for

communi-

cation

(response)

Receive

data

1 0 0 0 1 0 0 0 N

(1 ..14) 1 0 0 0 0 0 0 0 0

Module

has

received

bytes

1 0 0 0 1 0 0 0 N 1 0 1 0 0 0 0 0 0

acknow-

ledge after

data taken

over

Send

data

1 0 0 0 1 0 0 0 X 1 0 1 0 1 0 0 0 N

(1..14)

Before

changing

TX-CNT, set

TX bytes

1 0 1 0 1 0 0 0 X 1 0 1 0 1 0 0 0 N

acknow-

ledge after

module

sent data

For public disclosure

10 RSTi-EP Slice I/O Serial Communication Module

GFK-2992B

Field Wiring

The connection frame can take up to four connectors (shown in the following figure), and four wires can be connected

to each connector. The Spring style technology allows either finely stranded or solid wire conductors with crimped wire-

end ferrules or ultrasonically welded wires, each with a maximum cross-section of 1.5 mm² (16 guage), to be inserted

easily through the opening in the clamping terminal without having to use tools. To insert fine stranded wires without

wire-end ferrules, the pusher must be pressed in with a screwdriver and released to latch the wire.

Connector Block with Four Wire Connectors

Connector Specifications:

•Conductor cross-section 0.14 to 1.5 mm² (26 – 16 guage)

•10 A max amperes

•4-pole

The modules do not have a fused sensor/activator power supply. All cables to the connected sensors/actuators must be

fused corresponding to their conductor cross-sections (as per Standard DIN EN 60204-1, section 12).

Connection Cables for the Serial Device

Use shielded cables, because electromagnetic interferences from the surroundings have to be assumed. The maximum

permissable cable length depends on the cable capacitance and the baud rate.

Connecting a RS-232 Device

Maximum Cable Length RS-232

Cable Capacitance

Maximum Cable Length

≤ 2500 pF

15 m (49 ft), shielded

55 pF/m

45 m (147 ft)

For public disclosure

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