▪Baud Rate—This menu item is used to set the data rate (payload) for the COM port in bits per second. [1,200–115,200; 19200]
▪Byte Format—This item allows you to set the interface signaling parameters: baud rate (see Baud Rate above for the allowable range), data bits, parity, and stop bits. [7N1, 7E1, 7O1, 8N1, 8E1, 8O1; 8N1]
▪Buffer Size—This selection selects the size of the buffer available for passing serial traffic. The maximum AP buffer size for incoming serial data is 256 bytes. Incoming serial packets (from the RTU) larger than 256 bytes are split by the AP into 256 byte packets before being transmitted over the air. The associated remote(s) on receiving these packets transmits them out of the serial port as separate packets. This parameter does not affect serial data/packets received by the AP (from remotes) over the air and transmitted out of the local AP serial port. [16, 32, 64, 128, 256; 64 Bytes]
▪Inter-Packet Delay— Specifies the number of characters that signify the end of a message (inter-character time-out). A transceiver receiving data through the serial port sends an end-of-message signal to the remote end. MODBUS defines a “3.5-character” parameter. [0–65535; 4]
▪Commit Changes and Exit Wizard—Implements the settings shown on the screen and closes the Serial Configuration Wizard.
GFK-2489 | Chapter 3 AP Management | 3-29 |
