Ethernet

Network Capacity
PLCS supports Max.5 clients at once. TCP/IP supports Max.2 clients at once.
If more than Max. number clients access network at once, network will be malfunction.
Network Speed
Network speed(10Mbps, 100Mbps) will be set up automatically.

2.1 CIMON HMI Protocol (TCP/IP, UDP/IP)

1. PLCS supports "CIMON HMI Protocol" which all CIMON PLC have.

2. Comm. Port number : UDP/IP=10262, TCP/IP=10260

3. TCP/IP or UDP/IP are selected by Client(HMI device)

4. PLCS supports Max.5 clients at once. TCP/IP supports Max.2 clients at once.

2.2 MODBUS/TCP (Slave)

Open

1. User can see MODBUS Memory map in "PLC Parameter"

2. This function enables user to choose and assign internal memory as MODBUS Memory.

3. This MODBUS Memory Map will be operated as same as COM1 and COM2 MODBUS/RTU Protocol.

4. Comm. Port Number : TCP/IP 502

2.3 High Speed PLC Link

1. This function will be used when fast communication between CIMON PLCs is needed.

2. It is possible to communicate among Max. 64stations.

3. Each PLC can send and receive data of Max. 64stations. Sending stations are limited upto 32stations.

4. There can be Max. 64words executive data in a station.
   5) Choose HighSpeed Link(E) program

   Open

   

5. Note : [PLC Link] in [Parameter] does not support High support PLC Link to PLC-S. Only [Ethernet High Speed Link Program] in Special program supports this function.

6. Compatible Comm. Modules are as following
   PLC-S : All CPU module which has Ethernet Option
   PLC-S : CM3-SP01EET (Ethernet Expansion module)
   CP/XP Series PLC : CM1-EC10A, CM1-EC10B
   Note : CM1-EC01A of CP/XP series is not compatible with Ethernet option of CM2-BP series.

7. In order to enjoy the best performance, it should be separated with other networks. If it works with other networks, its network speed should be damaged. Its network is UDP/IP Broadcast type. Therefore, network Hub does not need to be

8. switching Hub.

9. Comm. Port Number : UDP/IP 10264

2.4 Programming Tool Connection (CICON)

1. CPU can connect to CICON through Ethernet.

2. UDP/IP is used and Port Number is 10266.

3. Programming Tool Bridge supported.

This function enable to make CICON communication from CPU to other CPU by port COM1 or COM2.

4. Example of Programming Tool Bridge
   The above configuration is the one of examples of Programming Tool Bridge.
   Generally PLC-S communicates with other PLC-S by MODBUS/RTU Master-Slave. (Master PLC-S has Ethernet Option)
   To operate this function, [Cicon Relay Use] of Master PLC Parameter must be selected.

As 2 serial ports are supported, 2 MODBUS/RTU networks can be set up.
If 2 Channels are used, IP address should be set up as below
Slave PLC with Channel 1 : Station No. 0~127
Slave PLC with Channel 2 : Station No. 128~254.
(Master PLC can use any Station No.)
After setup, connect Master PLC to CICON through Ethernet to operate Slave PLC.

Assign [Station No.] that you want to connect Slave PLC. Then Master PLC stops network and connects CICON to Serial port.
(MODBUS/RTU Master Communication mode is changed to Stop mode at that time)
Mater PLC will use assigned Station number of Ch1 or Ch2 in [PLC Parameter]
In case that both channels are selected by [Cicon Relay Use], any Station No. which is matched with Master PLC will be connected.

Without serial port setup, PLC-S can recognize Comm. protocol automatically. With this function, Slave PLC changes MODBUS/RTU mode to CICON Comm. mode automatically.
While program task is operating with Slave PLC, other PLCs will be on standby because serial port cannot have several comm. protocols.
After programming finished, Ethernet connection between Master PLC and CICON will be cut. If Master PLC does not receive message from CICON in 5 sec. it changes to previous comm. mode automatically. In this case, it will become MODBUS/RTU Master comm.
Master PLC which is changed to MODBUS/RTU Master comm. will restart communication with Slave PLC. Slave PLC search MODBUS/RTU protocol automatically and send respond when Station number is correct.

2.5 DHCP
(1) Outline
PLC-S supports DHCP that is operated with dynamic IP network. However, as HMI does not recognize dynamic IP, PLC-S provides method to operate private DDNS with CIMON SCADA.

(2) CIMON Private DDNS

The Private DDNS is the software which is provided with CIMON SCADA. It has function that operates PLC-S with CIMON SCADA through dynamic IP. CIMON SCADA can gain IP address of PLC-S if user install software in computer which has fixed IP and register PLC name and IP.

(3) PLC-S Setting (PLC Parameter -> Ethernet)

Above picture shows DHCP and DDNS setting parameter.
DDNS address : write IP address which is assigned to DDNS. DDNS redundancy is possible.
Site Name : Write PLC name. CIMON SCADA will search PLC IP address based on this Site Name.
DDNS Retry : PLC will send IP address to DDNS regularly. This function is used to register IP address to DDNS in case that IP address is changed and show that PLC is connected with network and works fine. Less than 1 minute is recommended.

(4) Etc.
The network address assigned from DHCP can be checked at below F device address.

DDNS Connection Port : UDP/IP, 20266