Pepperl+Fuchs K23-SSI/Rx/IU-C, Manual

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PPENDIX
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Valu
e
Designation Function
6 8-EVEN-1 8 data Parity even 1 stop
7 8-ODD-1 8 data Parity odd 1 stop
8 8-NONE-1 Cannot be used with the Modbus protocol.
9 8-NONE-2 8 data No parity 2 stops
SERIAL INIT
Not valid for Modbus communication
SERIAL PROTOCOL
Not valid for Modbus communication
SERIAL TIMER (S)
Not valid for Modbus communication
SERIAL VALUE
Not valid for Modbus communication
MODBUS
This parameter activates the Modbus protocol and determines the Modbus
address.
Value Function
0 Do not use with Modbus protocol (Modbus is deactivated)
1 … 247 Modbus activated: The serial interface uses the Modbus
RTU protocol
The number set here determines the Modbus node
address.
5.2.2 Read Holding Registers and Write Multiple
Registers
The "Read Holding Registers" and "Write Multiple Registers" functions can be
used to access all registers of the device. All variables (actual values) and status
registers are assigned to Modbus holding registers.
Since all device registers are 32-bit registers, but Modbus holding registers are
only 16-bit registers, each device register requires two holding registers. (For this
reason, it is not possible to use the "Write Single Register" Modbus function.)
With each read or write operation, it is only possible to access a single device
register, and therefore the "quantity (or number) of registers" in the Modbus