General Monitors IR400, Manual

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Model IR400 MODBUS
15
Baud Rate Codes
Code Function Access
1. 03 19200 Read/Write
02 9600 Read/Write
01 4800 Read/Write
00 2400 Read/Write
This function is indicated on the Low Data Byte and the High Data Byte is not used.
Exception – If the baud rate is not in range an Illegal data value (03) is returned.
•
NOTE: By grounding the magnetic switch (holding a magnet over the switch)
input during power-up cycle (10 seconds), the IR400 Baud Rate will default to
19600.
1.4.12 Data Format (0x000C)
A read returns the data format of the IR400. A write will change the data format to the
requested data format. After the data format has been changed, the addressed unit may
cease or start producing Comm. errors because the data format has changed; therefore,
the master will have to change its data format to the slave’s new data format in order to
re-start or provide proper communications.
Data Parity Stop Format Low Data Byte Access
8 None 1 8-N-1 00 Read/Write
8 Even 1 8-E-1 01 Read/Write
8 Odd 1 8-O-1 02 Read/Write
8 None 2 8-N-2 03 Read/Write
Table 10: Data Format
This function is indicated on the Low Data Byte and the High Data Byte is not used.
•
NOTE: By grounding the magnetic switch input during power-up cycle (10
seconds), the IR400 Data Format will default to 8-N-1.
Exception – If the baud rate is not in range an Illegal data value (03) is returned.
1.4.13 Priority Fault (0x000D)
A read returns the primary fault currently happening on the device. See Table .
1.4.14 Hazard Watch Options (0x0016)
A read returns the state enabled or disabled. A write of (1) enables Hazard Watch mode.
A write of (0) disables Hazard Watch mode.