This is intended for RHEL 8 and RHEL 9 users impacted by the communication issues described in this support article regarding Sealevel’s XR17V35X-based serial devices (7xxxec serial…
What is EtherNet/IP?
EtherNet/IP is open-source and is managed and developed by the Open DeviceNet Vendors Association (ODVA), a tax-exempt business league that includes a wide variety of…
What is Modbus?
Modbus, initially developed in 1979, is one of the oldest, most widely used industrial communications protocols. Traditionally, Modbus was/is implemented using RS-232, RS-422, or RS-485…
Datasheet: PCI 8-Port RS-232, RS-422, RS-485 Serial Interface
Manual: 7804c
SeaMAC: ssiEncodingNone vs ssiEncodingNrz
Is the 7203e PCIe serial interface dip switch or software configurable to change the RS-485 termination from a 120 Ohm resistor to an AC termination?
Sealevel’s 7203e does have onboard dip switches that would allow you to turn off the 102 Ohm resistor; the 120 Ohm resistor can be changed through dip…