If your eI/O device is unresponsive, the first step should be a factory reset. The factory reset switches the eI/0 device to its default IP…
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…
What is Modular Open Systems Approach (MOSA)?
MOSA is a strategy used by the Department of Defense (DoD) to make their systems more competitive and affordable throughout their lifespan. It involves designing…
What Modbus functions are supported by Sealevel products?
Many Sealevel products support Modbus including SeaI/O modules, SeaDAC modules, eI/O modules, SeaRAQ modules, and SeaConnect modules. That said, individual modules support different Modbus functions. This…
What network speeds can SeaI/O Ethernet (SeaI/O-E) modules handle?
SeaMAC: ssiEncodingNone vs ssiEncodingNrz
How can the RJ-45 connections on RS-232 and RS-485 SeaI/O data acquisition devices be used?
The RJ-45 connections on these data acquisition devices can be used both for daisy chaining additional boards and connecting a half-duplex RS-485 host system. In the latter…
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…