Communication with PLC devices by the Koyo Electronics company
The
Direct Logic device by the
Koyo Electronics company has more communication possibilities:
Communication by the Modbus protocol

The PLCs allow to communicate
by the Modbus protocol.
- 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 the 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 devices)
-
"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.
Communication by the DirectNet protocol
It is the proprietary protocol of the
KOYO company, used for communication via the computer's serial port
RS232C/RS422. This protocol is supported in all series of the
KOYO devices.
- The communication is done for serial link (COM1, COM2 ...).
- The PROMOTIC application is the MASTER (i.e. it initiates the data transfer) from this communication point of view.
Communication PROFIBUS-DP and DeviceNet
The communication on the
PROFIBUS-DP and
DeviceNet 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.