Commissioning TOCII CA72TOC
52 Endress+Hauser
6.5 Communication
The analyzer is equipped with an RS-232 serial interface.
Data transmission is unidirectional and is performed with the following parameters:
The string is 104 bytes long and is sent every 2 seconds.
Baud rate 9600 baud
Bits 8 bit
Parity N
Stop bit 1 bit
Handshake No
Byte Description
0Start byte
10 = Operation disabled
1 = Operation enabled
2 0 = Emergency shutdown
1 = Channel 1 measuring operation enabled
2 = Adjustment or calibration
3 = Service
4 = Programming
5 = Channel 2 measuring operation enabled
3 Leakage (0 = off, 1 = on)
4 Temperature too high (0 = off, 1 = on)
5 Low carrier gas supply (0 = off, 1 = on)
6 IR detector fault (0 = off, 1 = on)
7 Temperature too low (< 85 % T
set
) (0 = off, 1 = on)
8 Outside the measuring range (0 = off, 1 = on)
9 Temperature deviation of Peltier cooler (T
set
± 3 °C) (0 = off, 1 = on)
10 pH alarm (0 = off, 1 = on)
11 Temperature deviation (< T
set
-30 °C) (0 = off, 1 = on)
12 Standby (0 = off, 1 = on)
13 Limit value exceeded (0 = off, 1 = on)
14 Limit value undershot (0 = off, 1 = on)
15 Slope alarm (0 = off, 1 = on)
16 Unstable dosing, sample failure (furnace) (0 = off, 1 = on)
17 Water supply failure (0 = off, 1 = on)