Hardy HI 1756-FC - Manual (Page 32)

JBOX, the instrument can also read the weights and voltages of the individual sensors
attached to the IT JBOX.
To initiate an IT test, do a WRITEPARAM command, with parameter number 0x0036,
and a parameter value equal to the number of sensors, which should be 1-4 if you have an
IT JBOX. If you do not have an IT JBOX, the parameter value does not matter.
To read back the results, do a READPARAM command, with parameter numbers
0x0036, 0x1036, 0xB036. The return values are listed below.
Integrated Technician Return Values Table
Return Value # Hex Description
PARAMID_ITECH 0x0036
INSTANCE_VSENSE 0036 Sense voltage, 2 decimal places
INSTANCE_DVM_COMBINED 1036 millivolts per volt, 4 decimal places
INSTANCE_IREF_WEIGHT 2036 internal reference weight, weight decimal point
INSTANCE_JBOX_MV/V1 3036 Load cell 1 millivolts per volt, 4 decimal places
INSTANCE_JBOX_MV/V2 4036 Load cell 2 millivolts per volt, 4 decimal places
INSTANCE_JBOX_MV/V3 5036 Load cell 3 millivolts per volt, 4 decimal places
INSTANCE_JBOX_MV/V4 7036 Load cell 4 millivolts per volt, 4 decimal places
INSTANCE_JBOX_REF_WEIGHT 7036 reference weight on IT JBOX, weight decimal pt
INSTANCE_JBOX_WEIGHT1 8036 Sensor 1 on JBOX, weight decimal point
INSTANCE_JBOX_WEIGHT2 9036 Sensor 2 on JBOX, weight decimal point
INSTANCE_JBOX_WEIGHT3 A036 Sensor 3 on JBOX, weight decimal point
INSTANCE_JBOX_WEIGHT4 B036 Sensor 4 on JBOX, weight decimal point
CIP Messages
The weight and rate calibration values can be read and written by CIP messages.
 Message Type: CIP generic
 Service Code: 4C (hex)
 Class Name: 4
 Instance Name: 254
 Object Attribute: none, leave this blank
It is possible and convenient to configure the MSG instruction to use the same tag for
both source and destination.
There are four read and write calibration commands, each consisting of 20 DINT values
(80 bytes) as follows:
 Command (see the list of commands below)
 Channel (0 or 1)
 Rate Decimal points (0-7)
 7 pairs of rate calibration values. Each pair has an operating percentage
(OP) with two decimal places, and an associated rate, shown with the
number of decimal places specified by the Rate Decimal points parameter.
 CalZeroCounts
 CalLowCounts
 CalibK
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Chapter 4 ●
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