GF Signet 4150 Turbidimeter - Manual (Page 15)

15 Signet 4150 Turbidimeter
Input Registers
These 16-bit values are readable by the master. The data is stored with the MSB ¿ rst and then the LSB.
Valid Command(s)
Code Name Broadcast
0x04 Read Input Registers No
Format
Float: This is stored in two consecutive addresses, with the ¿ rst address containing the least signi¿ cant word (lower part of mantissa)
and the second address containing the most signi¿ cant word (sign, exponent, and upper part of mantissa).
Valid Addresses
30001 – 30XXX
De¿ nitions
Exception Responses Implemented
Code Name Meaning
00 -- No error
01 ILLEGAL FUNCTION The function code is not allowed in the device.
02 ILLEGAL DATA ADDRESS The data address is not allowed in the device
03 ILLEGAL DATA VALUE A value contained in the query ¿ eld is wrong for the device
Address Type Register Value Function
30001, 30002 Float Sensor reading -- The meter reading
30003, 30004 Float Sensor reading raw -- Sensor reading to six signi¿ cant places
30005 Int Version major -- Software version major number
30006 Int Version minor -- Software version minor number
30007 Int Version revision -- Software version revision number
30008 Int Model number -- Product number
30009 Int Model suf¿ x number -- 0 if no options
30010 Int Reading status 1 normal
2 over range
3 under range
6 reading problem
30011 Int Instrument error summary
(bit-mapped) 0x0000 Normal
0x0001 Error
0x0002 Alarm 1 is active
0x0004 Alarm 2 is active
0x0008 Calibration error
30012 Int Errors (bit-mapped) 0x0000 Normal
0x0001 Replace desiccant
0x0002 Break in the 4 to 20 mA
0x0004 Calibration error
0x0010 Data over-range
0x0020 Flow switch alarm
0x0040 Lamp problem
0x0080 Auto-cleaning problem
0x0100 General error
0x0200 General error
0x0400 General error
30013 Int PCB Revision 0 Revision 1
1 Revision 2