Flexim FLUXUS ADM 5 07 Series, Дополнение к руководству пользователя

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Supplement to User Manual - ENGLISH Modbus Server
SU_ModbusV2-8, 2015-03-02 71
10 Special Registers
Firmware Version
The Modbus register with the address 0 contains the current Modbus firmware version. The first byte contains the higher
and the second byte the lower part of the version number.
Heartbeat
The Modbus register with the address 1 contains the heartbeat (16 bit). If the transmitter is switched on, the register is set
to 0. The register value is increased by 1 every second. When the register value reaches 65535, a register overflow oc-
curs and the counting restarts at 0.
Response Delay
The Modbus register with the address 10 contains the response delay in ms. Although it has 16 bit, the gateway only al-
lows values in the range 0...1000. The preset value is 10 ms.
This register is intended for older PLCs which require a delay between the request and the response.
Date/Time of the Last Measuring Data Set
The Modbus registers with the addresses 3...8 contain the date and the time of the last measurement.
Check of the Settings of the Modbus Master System
By reading the Modbus register with the adresses 130 and 131 it can be verified if a 0-based or a 1-based Modbus master
system is used and if the order of the word/register was chosen correctly.
• 0 based Modbus master system
In the Modbus register with the address 130, the value 8293 (integer 16 bit) is read.
• 1 based Modbus master system
In the Modbus register with the address 131, the value 8293 (integer 16 bit) is read, i.e. all Modbus register addresses
listed in the document should be increased by 1.
Word / register order
In the Modbus register with the addresses 130 and 131 (0 based Modbus master system) the following value is read
• 123456,789 (float pointing number 32 bit) or
• 543508465 (integer 32 bit)
When using 1 based Modbus master systems, the Modbus register adresses have to be increased by 1 to 131 and 132.
Fast Update Rate of Measured Values
The measured values are usually updated every 1 s per channel, i.e., if 2 channels are activated, the measured values are
updated every 2 s.
For 4 physical quantities, a faster update rate can be set. The measured values of each of these physical quantities are
then updated every 500 ms.
• Write the IDs of the physical quantities for the fast update rate of measured values as a 16-bit integer into the Modbus
registers with the addresses 300...303. For the IDs see Tab. 10.3.
• Write 1 into the Modbus register with the address 310.
Tab. 10.1: Modbus register addresses for date and time
Modbus register address explanation
3 day
4 month
5 year
6 hour
7 minute
8 second