Akytec PVT10 Benutzerhandbuch - Seite 15
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Appendix B Connection to the Computer
Appendix B Connection to the Computer
B.1
Communication parameters
Parameter
Baud rate
Data bits
Parity
Stop bits
Protocol
Modbus functions
Error codes
B.2
Modbus registers
Registers Reg are shown in hexadecimal 0-based format.
Modbus holding register numbers are shown in decimal 1-based format, and may be addressed either from 00001
or 40001 base.
Address
RW
hex
dec
0x0001 (4)0001
R
0x0002 (4)0002
R
Product version
0x0003 (4)0003
R
0x0004 (4)0004 RW Slave ID (net address) *
0x0005 (4)0005 RW Baud rate *
0x0006 (4)0006 RW Response delay, ms
0x0007 (4)0007 RW Stop bits *
0x0008 (4)0008
R
Last error code
0x0010 (4)0016
R
Software version
0x0011 (4)0017 RW Restarts counter
Temperature compensation
0x0099 (4)0153 RW
parameter
Zero adjustment for
0x00A2 (4)0162 RW
temperature data, °C × 100
Slope adjustment for
0x00A3 (4)0163 RW
temperature data, % × 1000
akYtec GmbH · Vahrenwalder Str. 269 A · 30179 Hannover · Germany · Tel.: +49 (0) 511 16 59 672-0 ·
Supported values
1.2...57.6 kbit/s
8
none
1, 2
03 - read multiple registers
06 - write single register
01 - illegal function
02 - illegal data address
03 - illegal data value
04 - slave device failure (details of last error 04 can be read from register
0x0008)
Description
-32000...+32000 (-320.00...+320.00 °C)
Modbus RTU
Supported values (dec)
-
1...247 **
1.2...57.6 kbit/s
10...255
1, 2
1...255
520 (dec), 208 (hex)
write '42330' to restart device
(no response will follow)
-32000...+32000
-32000...+32000 (-32.000...+32.000 %)
Default value
9.6 kbit/s
8
none
1
Default
PV
T1
0
16
9.6
10
1
0
520
-
0
0
0
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