BayTech RPC Single-phase Conbined QS - Manual (Page 36)

RPC with or without Ethernet
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Baud Rate
Select 2), Baud Rate is the rate the modem transfers Data bites per second, Default is 9600, the RPC
displays the following:
Type the number to select the Baud Rate and press .
Word Size
The word size is the measurement of the actual data bits in a transmission. Which setting you choose
depends on what information you are transferring. For example, standard ASCII has values from 0 to
127 (7 bits). Extended ASCII uses 0 to 255 (8 bits). If the data being transferred is simple text
(standard ASCII), sending 7 bits of data per packet is sufficient for communication. A packet refers to
a single byte transfer, including start/stop bits, data bits, and parity.
Select 3), to get the Word Size, Default is 8 the RPC displays the following:
Type the number to select the Word Size and press .
Stop Bits
The Stop Bits are used to signal the end of communication for a single packet. Since the data is
clocked across the lines and each device has its own clock, it is possible for the two devices to become
slightly out of sync. Therefore, the stop bits not only indicate the end of transmission but also give the
computers some room for error in the clock speeds. The more bits that are used for stop bits, the
greater the lenience in synchronizing the different clocks, but the slower the data transmission rate.
Select 4), to get the Stop Bits, Default is 1 the RPC displays the following:
Select baud rate:
1 For 300
2 For 600
3 For 1200
4 For 2400
5 For 4800
6 For 9600
7 For 19200
8 For 38400
9 For 57.6K
A For 115.2K
Enter Request :
Select word size:
1 For 5
2 For 6
3 For 7
4 For 8
Enter Request :
Select stop bits:
1 For 1
2 For 1.5
3 For 2
Enter Request :