
Serial Interface Manual
TLS4/TLS-450 Monitoring Systems
Part No. 577013-950, Revision L
68
Function Code 20I Notes:
(Continued)
Typical Response Message, Computer Format:
<SOH>i20ITTYYMMDDHHmmTTpssssNNFFFFFFFF...
TTpssssNNFFFFFFFF&&CCCC<ETX>
Notes:
1.
YYMMDDHHmm - Current Date and Time
2.
TT - Tank Number (Decimal, 00=all)
3.
p - Product Code (one ASCII character [20h-7Eh])
4.
ssss - Tank Status Bits:
Bit 1 - (LSB) Delivery in Progress
Bit 2 - Leak Test in Progress
Bit 3 - Invalid Fuel Height Alarm (MAG Probes Only)
Bit 4-16 - Unused
5.
NN - Number of eight character Data Fields to follow (Hex)
6.
FFFFFFFF - ASCII Hex IEEE floats:
1. Volume
2. TC Volume
3. Ullage
4. Height
5. Water
6. Temperature
7. Water Volume
8. User Ullage
9. Mass
10. Density
11. TC Density
7.
&& - Data Termination Flag
8.
CCCC - Message Checksum