Chapter 5 Detailed Descriptions of I/O Modules
GFK-2958E
RSTi-EP User Manual
215
Process Output Data EP-5261
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
or
QB 2 ... QB 15
Transmission
data
User data of the
transferred
telegram
segment
Summary of Contents for GFK-2958E
Page 1: ...RSTi EP User Manual GFK 2958E November 2017 ...
Page 23: ...Chapter 1 Introduction GFK 2958E RSTi EP User Manual 19 Notes ...
Page 56: ...Chapter 3 Configuration GFK 2958E RSTi EP User Manual 52 Notes ...
Page 183: ...Chapter 5 Detailed Descriptions of I O Modules GFK 2958E RSTi EP User Manual 179 EP 5111 ...
Page 184: ...Chapter 5 Detailed Descriptions of I O Modules GFK 2958E RSTi EP User Manual 180 EP 5111 ...
Page 316: ...Chapter 5 Detailed Descriptions of I O Modules GFK 2958E RSTi EP User Manual 312 Notes ...
Page 330: ...Chapter 6 Installation GFK 2958E RSTi EP User Manual 326 Notes ...
Page 344: ...Chapter 7 Earthing and Shielding GFK 2958E RSTi EP User Manual 340 ...
Page 345: ...Chapter 7 Earthing and Shielding GFK 2958E RSTi EP User Manual 341 Notes ...
Page 385: ...Chapter 8 Web Server GFK 2958E RSTi EP User Manual 381 Notes ...
Page 401: ...Chapter 11 Disassembly and Disposal GFK 2958E RSTi EP User Manual 397 Notes ...
Page 413: ...Chapter 12 LED Indicators and Troubleshooting GFK 2958E RSTi EP User Manual 409 Notes ...
Page 416: ...Chapter 14Accessories and Replacement Parts GFK 2958E RSTi EP User Manual 412 Notes ...