![]() However, your diagnostic LEDs will always be active until the licenses are installed, and the diagnostic buffer will fill up with messages telling you there is a license missing, which is a nuisance and somethingyour client can live without. These demo versions work as well as the licensed ones, so you can use them to prepare and test your comms before the license arrives. Note that you can download demo versions with full functionnality from the same page, in the Downloads tab. ![]() As I test ignition Modbus RTU driver I see that it try to poll every device register without any delay. The delay is important because some times the slave devices need some time to empty their buffer before can get another packet request. See the following link for the ordering data for OpenModbus TCP licenses: Hi IN Modbus RTU connection on a single Rs485 bus, there are cases, that master have to poll each device in with some delay in sequence. ![]() Siemens offers a Modbus/TCP software for the CP 343-1/443-1 of for the integrated PN port of certain of its CPUs. ![]()
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