Modbus TCP

JCOM Automation Inc. offers the full line of Modbus TCP products from Helmholz, PROCENTEC and Thorsis Technologies:

Monitoring and Commissioning Tools

Osiris is monitoring software that runs on either Atlas or Mercury. Atlas is for permanent monitoring while Mercury is for temporary monitoring. Atlas is DIN rail mountable device that can plug anywhere in your system and monitors the network. Mercury is a hand-held tablet that you can use to troubleshoot Industrial Ethernet or PROFIBUS.

Osiris provides excellent network diagnostics. There is a simple traffic light to indicate how your network is doing. On the Device list, you see everyone on your network, what protocol they are talking. You can generate a topology diagram. The software uses both SNMP and ICMP to scan your network. It is one of few packages that can find bad cables.

Ethernet TAP

PROCENTEC is taking diagnostics to the next level. The new EtherTAP monitoring interface is the bridge to the Osiris functionality on our portable Mercury tablet and permanent Atlas module. Both devices run on diagnostics platform Osiris to analyse the information feed from the EtherTAP. This enables our build-in assistant Delphi to come up with a solution to help you to quickly and effectively get your operations running again.

Managed and Un-Managed Switches

Helmholz makes 4,8 and 16 port managed and un-managed switches! They are made with German quality and North American ease of use. The switches have a small footprint taking up minimal panel space but with all the functionality you need. They work well for Ethernet IP and Modbus TCP. 

Just in case you are wondering, Yes, you do want a managed switch! You can save some money by going with an un-managed switch but the first time your network has an issue, you are going to be wishing that you had a managed switch with all the diagnostics! Yes, we also troubleshoot Industrial Ethernet networks, so our opinion is biased!

Wall-IE – Industrial Ethernet Bridge and Firewall

Helmholz’s WALL IE, the Industrial Ethernet Bridge and Firewall, simply integrates your machinery network into the higher-level production network. A package filter protects the network from unauthorized access. If identical IP address ranges are to be realized, WALL IE functions as a bridge.

The NAT operating mode serves the forwarding of the data traffic between various IPv4 networks. It enables address translation via NAT and uses package filters to limit access to the automation network located behind.

In the bridge operating mode, WALL IE acts as a layer-2 switch. In contrast with normal switches, however, package filtering is also possible in this operating mode. This means that the restriction of access to individual areas of your network can be achieved without having to use different networks for this purpose.


A Gateway is a device that is used to join two different networks together. All of our gateways are a Modbus TCP slave on one side and then either HART, PROFIBUS PA, PROFIBUS DP, Modbus RTU or serial, master on the other.

Thorsis Technologies makes an excellent gateway from Modbus TCP to HART, PROFIBUS PA, and PROFIBUS DP! The head module is called an isNet lite, and there are different modules for HART, PROFIBUS PA and PROFIBUS DP. The gateway is DIN rail mountable and is easy to set up. It supports HART IP and has full DTM support. It works well with PACTware and SIMATIC PDM.

PROCENTEC has a Modbus TCP to Modbus RTU or serial gateway called VPgate. This gateway is also easy to set up.

Please contact us for more details or to arrange a demonstration.



Helmholz makes easy to use industrially hardened connectors for PROFINET. They require no special tools. They come in 180, 90 and 145 degree angles. 

We offer training courses!

COM Automation Inc. is first and foremost a training company. We offer specialized training for your company on; PROFIBUS, PROFINET, Ethernet IP, Modbus TCP, Modbus RTU, CAN, HART,  and Foundation Fieldbus. For a quote on a specialized course, please contact us directly.

We are a certified training center for PROFIBUS PROFINET International. We offer both certified and non-certified courses.


Ready to get started?

Check out our course schedule, or get in touch

website hosting and development by Emmatt Digital Solutions Inc.