Skip to Content

Limitation of the Ethernet communication protocol

Last modified by Hunter on 2025/01/16 11:44

Limitation of the Ethernet communication protocol

The table below shows the maximum number of communications configured for the general protocol, Free Tag Protocol and CodeSys V3 Protocol on each series model.
 (**Only HMI V2.0 System supports Free Tag Protocol and CodeSys V3 Protocol**)

HMI SeriesGeneral Protocol
General 3000 Series16
General 8000 Series24
General 9000 Series32
PI3000i Series16
PI3000ie Series
 (PI3043ieS-N)		16
PI3000ie Series
 (other model)		N/A
PI3000ig Series32
PI8000ig Series32

PIStudio Version Limit Differences for FreeTag protocol

PIStudio Version8.2.95.220928028.4.66.231020019.1.18.24122702
ProtocolWecon LX6V FreeTag*3rd Party Manufacturer FreeTag*Wecon FreeTag Protocol(6C & 6V)*3rd Party Manufacturer FreeTagWecon FreeTag Protocol(6C & 6V)3rd Party Manufacturer FreeTag
PI3043ieS-NYESYESN/AN/AN/AN/A
PI3070ig-O(x)*, PI3102ig-O(x), PI3070ig-OH(x), PI3102ig-OH(x), YESYESN/AN/AYESN/A

PI3070ig(x)*, PI3102ig(x),

PI3070ig-C(x), PI3102ig-C(x), 

PI3070ig-CH(x), PI3102ig-CH(x)

YESYESYESYESYESN/A
PI8000igYESYESYESYESYESYES

✎Note: Since CODESYS V3 was released in version 8.4.66.23102001, only the LX6V FreeTag protocol is available in version 8.2.95.22082802. The Wecon Free Tag protocol specifically refers to the "WECON LX6V FreeTag Ethernet" and "CODESYS V3".
The list of 3rd-party manufacturers' FreeTag protocols is as follows:
1. INOVANCE H5U Ethernet FreeTag
2. OMRON EtherNet/IP (NX/NJ Series)
3. Rockwell CompactLogix Ethenet/IP
4. Rockwell Micro850 Ethernet/IP
5. Siemens S7-1200/S7-1500 Ethenet FreeTag
6. OPC UA Client
7. BECKHOFF TwinCAT

The model suffix (x) means there are optional (G), (W), (AG) model.

FreeTag Protocols Quantity Recommendation on HMI Series

ProtocolRH SeriesRE SeriesPI3000ig SeriesPI8000ig SeriesPI3000ie SeriesPI3000i SeriesIN Series
CODESYS V32N/A*22N/AN/AN/A
WECON LX6V6N/A46N/AN/AN/A
INOVANCE H5U FreeTag6N/A6(2.0)*6N/AN/AN/A
OMRON NX/NJ6N/A6(2.0)*6N/AN/AN/A
Rockwell CompactLogix6N/A6(2.0)*6N/AN/AN/A
Rockwell Micro8506N/A6(2.0)*6N/AN/AN/A
SiemensS7-1200/S7-1500 FreeTag6N/AN/A6N/AN/AN/A
OPC UA Client6N/AN/A6N/AN/AN/A
OPC UA Server*N/AN/AN/AYESN/AN/AN/A
BECKHOFF TwinCAT6N/AN/A6N/AN/AN/A

✎Note:

1. N/A* means this series does not support the corresponding protocol

2. (2.0)* means the 3000ig Series only support 3rd party manufacturer on HMI V2.0 system, but will not available after upgrade into HMI V3.0.

3. The OPC UA Server is configured through the Data tool, not the Communication parameter settings. Only one configuration is valid, so the recommended quantity for creating protocols is not applicable to the OPC UA Server.

4. All the numbers above represent the recommended quantity for creating protocols. Communication speed may be delayed if the number exceeds the recommended limit.