![]() ![]() Some ACE have serial ports that can be configured as either RS232 or RS485. RX (must be connected to TX pin of the connected device). ![]() TX (must be connected to RX pin of the connected device).The illustration on the right shows the connections. It is NOT a TTL level (0 / 5 VDC) : A logic high is represented by a negative voltage -5 while a logic low transmits a positive voltage +5 V.ĪCE RS232 ports have three pin connectors. Our serial port is a true standard RS232/485.RS485 ports are commonly used in multi-unit systems and for longer distance communictions.They are also commonly used to interface cellular transceivers for internet of things applications and can be used in ASCII communications mode to communicate to any device that has an RS232 port. RS232 ports are commonly used for interfacing HMI and other devices through Modbus RTU communications. ![]() Certain ACE have RS232 ports or configurable RS232/485 ports. ![]()
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