Limitation of the Ethernet communication protocol

Version 55.1 by Hunter on 2025/02/12 13:46

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 Series	General Protocol
General 3000 Series	16
General 8000 Series	24
General 9000 Series	32
PI3000i Series	16
PI3000ie Series (PI3043ieS-N)	16
PI3000ie Series (other model)	N/A
PI3000ig Series	32
PI8000ig Series	32

PIStudio Version Limit Differences for FreeTag protocol

PIStudio Version	8.2.95.22092802		8.4.66.23102001		9.1.18.24122702
Protocol	Wecon LX6V FreeTag*	3rd Party Manufacturer FreeTag*	Wecon FreeTag Protocol(6C & 6V)*	3rd Party Manufacturer FreeTag	Wecon FreeTag Protocol(6C & 6V)	3rd Party Manufacturer FreeTag
PI3043ieS-N	YES	YES	N/A	N/A	N/A	N/A
PI3070ig-O(x)*, PI3102ig-O(x), PI3070ig-OH(x), PI3102ig-OH(x),	YES	YES	N/A	N/A	YES	N/A
PI3070ig(x)*, PI3102ig(x), PI3070ig-C(x), PI3102ig-C(x), PI3070ig-CH(x), PI3102ig-CH(x)	YES	YES	YES	YES	YES	N/A
PI8000ig	YES	YES	YES	YES	YES	YES

✎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.

PI9.0 FreeTag Protocols Limitation on HMI Series

Protocol	RE-00/RE-4G	RE-00-LA/ RE-4G-LA	PI3000ig Series	PI8000ig Series	PI3043ieS-N	PI3000i Series	IN Series
CODESYS V3	N/A	N/A	YES(Recommend 2)*	YES(Recommend 2)*	N/A	N/A	N/A
WECON LX6V FreeTag Ethernet	YES	YES	YES(Recommend 4)*	YES(Recommend 6)*	YES(Recommend 2)*	N/A	N/A
BACnet/IP**	N/A	N/A	N/A	YES(Recommend 6)*	N/A	N/A	N/A
BECKHOFF TwinCAT	N/A	YES	N/A	YES(Recommend 6)*	N/A	N/A	N/A
INOVANCE H5U FreeTag	N/A	YES	N/A	YES(Recommend 6)*	N/A	N/A	N/A
KEYENCE EtherNet/IP KV8000/KV-X310/KV-X520**	N/A	N/A	N/A	YES(Recommend 6)*	N/A	N/A	N/A
OMRON NX/NJ Ethernet/IP	N/A	YES	N/A	YES(Recommend 6)*	N/A	N/A	N/A
OPC UA Client	N/A	YES	N/A	YES(Recommend 6)*	N/A	N/A	N/A
OPC UA Server	N/A	N/A	N/A	YES(Recommend 6)*	N/A	N/A	N/A
Rockwell EtherNet/IP CompactLogix	N/A	YES	N/A	YES(Recommend 6)*	N/A	N/A	N/A
Rockwell EtherNet/IP Micro850	N/A	YES	N/A	YES(Recommend 6)*	N/A	N/A	N/A
Siemens S7-1200/S7-1500 FreeTag	N/A	YES	N/A	YES(Recommend 6)*	N/A	N/A	N/A

✎Note:

1. (Recommend X)* represents the recommended quantity for creating protocols. Communication speed may be delayed if the number exceeds the recommended limit.

2. BACnet/IP** and KEYENCE EtherNet/IP KV8000/KV-X310/KV-X520** now only available for Early Access PIStudio Version 10.0.