Communication with Koyo Electronics PLC devices
The Direc Logic
device from the Koyo Electronics
company has more communication possibilities:
Communication by Modbus protocol
The PLCs allow to communicate by the Modbus
- Modbus RTU for serial link supported by all automated machines.
- Modbus TCP/IP for Ethernet supported by communication modules H0/H2/H4 ECOM 100.
For this communication in the PROMOTIC system can be used: PmModbusMr - Driver for communication by Modbus Master protocol
For easy integration of this driver into the application it is handy to use:
For this driver, it is recommended to set the configurators: (the setting is valid for DL06
- "Data item address"
then enter as follows:
|Memory Type ||Address range of the data item ||Modbus address range|
|Inputs (X) || Bi0 - Bi511 ||2048 - 2559|
|Special Relays (SP) || Bi1024 - Bi1535 ||3072 - 3583|
|Outputs (Y) || Bo0 - Bo511 ||2048 - 2559|
|Control Relays (CR) || Bo1024 - Bo2047 ||3072 - 4095|
|Timer Contacts (T) || Bo4096 - Bo4351 ||6144 - 6399|
|Counter Contacts (CT) || Bo4352 - Bo4479 ||6400 - 6527|
|Stage Status Bits (S) || Bo3072 - Bo4095 ||5120 - 6173|
|Timer Current Values (V) || Ri0 - Ri255 ||0 - 255|
|Counter Current Values (V) || Ri512 - Ri639 ||512 - 639|
|V-Memory, user data (V) || Ro640 - Ro3839 ||640 - 3839|
|V-Memory, user data (V) || Ro4096 - Ro8191 ||4096 - 8191|
|V-Memory, non-volatile (V) || Ro3840 - Ro3967 ||3840 - 3967|
Note: "Modbus address range" = The address range of the data item if Area base addresses is 0.
The communication by the DirectNet protocol
It is the proprietary KOYO
protocol, used for the communication via the computer's serial port RS232C/RS422
. This protocol is supported in all series of the KOYO
- The communication is done via the computer's serial port (COM1, COM2 ...).
- The PROMOTIC application is the MASTER (i.e. it initiates the data transfer) from this communication point of view.
The PROFIBUS-DP and DeviceNet communication
The communication on the PROFIBUS-DP
buses is accessible for the PROMOTIC application by the OPC interface
. The PROMOTIC application is the OPC client and it communicates with the OPC Server. The OPC Server for this communication has to be purchased at the HW supplier.