iSMA CONTROLLI TP - Page 7

TP Software User Manual
www.ismacontrolli.com
DMP253en | 1st Issue rev. 0 | 04/2022
page 7 of 49
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Value Baud Rate (bps)
480 4800
960 9600
1920 19200
3840 38400
5760 57600
7680 76800
11520 115200 (default)
Table 3. Baud rate values
STOP_BITS:determines a number of stop bits in a Modbus frame according to the
following table:
Value No. of Stop Bits
1 1 (default)
2 2
Table 4. Values of the STOP_BITS register
Modbus register 40018;
BACnet object: N/A;
DATA_BITS:determines a number of data bits in a Modbus frame (the Modbus ASCII
protocol requires 7 bits):
Value No. of Data Bits
7 7
8 8 (default)
Table 5. Values of the DATA_BITS register
Modbus register 40019;
BACnet object: N/A;
PARITY_BIT: each byte of data being transferred may have an additional protection of a
parity bit added before stop bit (bits). The 16-bit register determines a number of added
parity bits according to the table below: