PT113
Instruction Manual
39
2
3
4
5
Medium
6
7
Default
8
9
Slowest
40034
R
1
Voltage of
Power Supply
Voltage of power supply is indicated with 0.1 V increments.
For example: 23.4 VDC is indicated as integer 234 value.
(1) Write this command after writing values to addresses 40011-40012.
(2) For bipolar input, the range is ± the value shown. i.e. 40015 = 3 is ± 18mV
Programming steps for frequently used communication ……
Reading a weight value:
1. Read 40003,
2. Check D0=0 and D1=1,
3. If yes, read a weight value 40001 (gross, net or count),
4. If D0=1, check D0 until system ready,
5. If D1=0, check the error code and repeat if necessary.
Zero Calibration procedure:
1. Check the low byte of 40013. It should be decimal '1' before starting adjustment.
2. Load the decimal '188' into 40010 to start Zero calibration.
3. Check the low byte of 40013. During the zero calibration process it is decimal '3'.
4. The low byte of 40013 changes to decimal '1' at the end of Zero calibration.
5. If the low byte of 40013 is '9', check the high byte of 40013 to determine the calibration error.
Span Calibration procedure:
1. Check the low byte of 40013. It should be decimal '1' before starting adjustment.
2. First load the span calibration load value into 40011-12 (2 bytes at address 40011) and then
load the decimal '220' into 40010 to start Span calibration.
3. Check the low byte of 40013. During the span calibration process it is decimal '4'.
4. The low byte of 40013 changes to decimal '1' at the end of Span calibration.
5. If the low byte of 40013 is '9', check the high byte of 40013 to determine the calibration error.
Note: For hardware connection details, please refer to the related hardware descriptions in this manual.
Exception codes returned in the Modbus packet:
1: Function code is not supported.
2: Out of beginning and ending address range.
3: Invalid value entry or wrong byte number.
4: Operation error.
Command Examples:
Below you will find some command samples. These examples are performing Read and Write
operations according to the hexadecimal numbering system with Modbus RTU High-Low and the
instrument set to address “0x01”. For Ethernet set the unit ID (01 below at the beginning) to 01 and omit
the last 2 checksum bytes.
Description
Hex
Request weight data
01,03,00,00,00,02,C4,0B
Answer of request weight
(weight value is 100000)
01,03,04,00,01,86,A0,38,4A
Request status data
01,03,00,02,00,01,25,CA
Taring
01,10,00,08,00,01,02,00,02,26,D9
Request tare data
01,03,00,03,00,02,34,0B
Answer of request tare
(tare value is 10000 )
01,03,04,00,00,27,10,E0,0F
Zero Command
01,10,00,08,00,01,02,00,01,66,D8
Request Calibration Status
01,03,00,0C,00,01,44,09
Answer of request Calibration Status (Instrument is
ready for calibration)
01,03,02,00,01,79,84