Grundfos Polydos 412E, Инструкция по установке и эксплуатации

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Display text/
Symbol
Description
Swapping is not activated. The sequence of
reading and writing of bits is the same. Push the
symbol to activate swapping.
Swapping is activated. The sequence of reading
and writing of bits is inverse. Push the symbol to
deactivate swapping.
Push these symbols to select or deselect this type
of bus communication.
Push this symbol to revert to the previous menu.
Technical data of the interface
Number of holding registers for reading (F03): 0 … 9 (40001-40010)
Number of holding registers for writing (F16): 16 … 19
(40017-40020)
The client must be programmed accordingly.
Modbus functions
Registers for reading and writing are separate registers, even if they
have the same number.
Depending on the client, it can be possible that the bits in register
are inverse (bit 0 of first byte in data block is bit 0 or bit 8 in register
“xxx”). Also words of real values can be inverse. In both cases use
the swapping function.
Related information
8.8.9 Output addresses (Polydos to SCADA)
8.8.10 Input addresses (SCADA to Polydos)
8.8.5 MODBUS-RTU - Parameters
In this menu, the bus communication settings for MODBUS-RTU
can be viewed and changed.
Menu action Required user level
Access menu
Change settings
3 System Service
PD412E-D2330
Fig. MODBUS-RTU - Parameters
The display shows the default settings.
Display text/
Symbol
Description
Slave
adress:
Station address of the MODBUS slave.
Address range: 0-255
Baud rate:
Data transfer rate. Align this value with the setting
of the connected bus system.
Error code
for bus
setting:
Error code for connection establishment
Parity:
Align this value with the setting of the connected
bus system.
Error code
for bus
communicat
ion:
Current error code
Last error
code Bus
communicat
ion:
Last error code. Below this text, the MODBUS RTU
buffer is listed.
Push this symbol to update the field.
Received
data:
Below these texts, the MODBUS RTU receive and
send buffers are listed.
Sent data:
Byte in
register
The symbols next to these texts indicate the
swapping status of the register/double register.
Word in
double
register
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English (GB)