CNT expansion port
Wieland Electric GmbH | BA000917 | 08/2021 (Rev. C)
13
3.5
Description of protocol XC-CNT MODBUS ASCII Slave
The XC-CNT MODBUS ASCII slave protocol is a communication protocol by means of which the
router communicates with the CNT board. Using this protocol, the station configures board soft-
ware, reads the buffer, controls binary output and switches the main station supply off.
The expansion port CNT communicates by this protocol with bit rate 9600 bit/s (8N1).
Address
Access
Description
0x0000
R/-
Firmware type
0x0001
R/-
Upper 16 bits of firmware version
0x0002
R/-
Lower 16 bits of firmware version
0x0003
R/-
Supports firmware characteristics
•
bit 0 – analogy input AN1
•
bit 1 – analogy input AN2
•
bit 2 – counter input CNT1
•
bit 3 – counter input CNT2
•
bit 4 – binary input BIN1
•
bit 5 – binary input BIN2
•
bit 6 – binary input BIN3
•
bit 7 – binary input BIN4
•
bit 8 – binary output OUT
•
bit 9 – automatic feeder control
•
bit 10 – fullduplex counter CNT1/CNT2
0x0004
R/-
Maximal logs number in buffer
0x0005
R/W
Marker of log launching and alarms work
0x0006
R/W
Upper 16 bits of seconds number from 1.1.1970
0x0007
R/W
Lower 16 bits of seconds number from 1.1.1970
0x0008
R/W
Upper 16 bits of log actual number
0x0009
R/W
Lower 16 bits of log actual number
0x000A
R/-
Alarms actual status
0x0100
R/-
Binary inputs status
0x0200
Binary outputs status
0x0300
R/-
Recalculate value of analogy input AN1 (with sign)
0x0400
R/-
Recalculate value of analogy input AN2 (with sign)
0x0500
R/W
Upper 16 bits of counter CNT1 value
0x0501
R/W
Lower 16 bits of counter CNT1 value
0x0502
R/-
Prompt frequency CNT1
0x0503
R/-
Average frequency CNT1
0x0504
R/-
Minimal frequency CNT1
0x0505
R/-
Maximal frequency CNT1
0x0601
R/W
Upper 16 bits of counter CNT2 value
0x0601
R/W
Lower 16 bits of counter CNT2 value
0x0602
R/-
Prompt frequency CNT2
0x0603
R/-
Average frequency CNT2
0x0604
R/-
Minimal frequency CNT2
0x0605
R/-
Maximal frequency CNT2
0x0F00
R/-
0x0000 always
0x0F01
R/-
0x0000 always
0x0F02
R/-
Upper 16 bits of seconds number from 1.1.1970
0x0F03
R/-
Lower 16 bits of seconds number from 1.1.1970
