Chapter 5 Detailed Descriptions of I/O Modules
GFK-2958E
RSTi-EP User Manual
217
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
7
6
5
4
3
2 1 0
7
6
5
4
3
2 1 0
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
RX
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
TX
acknow-
ledge after
module
sent data
Summary of Contents for RSTi-EP
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...