Communication; Memory Map - Kernel DLC 1200SG User Manual

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2.2 Communication

The serial communication occurs only via RS 485. It will be necessary to set the protocol KNP_MASTER 19200,
N, 8, 1, on the PLC Kernel Sistemi.
With the dip-switches 1 and 2 you select the COMMUNICATION PROTOCOL and with the dip-switch 3 you choose
the BAUD RATE; according to the protocol set with the dip-switches, you need to select the corresponding
protocol (within the PLC project) in the COM used between PLC and expansions. Also in this case it's necessary to
open the PLC project and go to the menu "Project Options" >> table "Serial" to select the correct protocol :
DIP-SWITCH 1 e 2
-------------------------------------------------------------------------------------
00 = KNP (Kernel Network Protocol) – KNP MASTER
01 = KERNEL Protocol
11 = MODBUS RTU Protocol
Also the Baud Rate set with the dip-switch must obviously coincide with the one selected in the "Project Options"
>> table "Serial" in the COM used between PLC and expansions.
Currently the DLC1200SG has two 16 bit (1 WORD) memory location called DATA which allow to read the current
strain gauge value.
Operand
DATA.01 Strain gauge value
(Modbus - 40001) INSTANT 16 Bit Value
DATA.02 Strain gauge value
(Modbus - 40002) AVERAGE 16 Bit Value
Read Only DATA
DLC 1200SG – User Manual
Comment
- Project Options >> "Serials" of the PLC project
- KERNEL
- RTU MASTER

3 Memory Map

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Kernel Sistemi s.r.l.
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