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PPC-2000 User’s Guide Chapter 5: LogicPro and Modbus Reference

Doc.# 30002-00 Rev 2.3 Watlow Anafaze 169

Sample Time

Time, in milliseconds, between scans for this input, as last

reported by the analog input driver. This is a read-only

parameter.

Input, Raw Counts

Actual raw counts read during the last scan for analog and

counter inputs.

Input Value

Fully linearized and filtered input reading in engineering

units: degrees for temperature inputs or specified engineering

units for linear inputs. Input values are copied to the process

variable register for channels with this input chosen as the

Process Variable Source. Units depend on Input Type.

Input Status

This read-only register contains information about the sensor.

Table 5.9 lists and describes the possible values for the

parameter.

Table 5.9 Input Status

Input Type

Specify the sensor type. Table 5.10 on page 170 shows the

default sensor ranges for the various inputs. All Input Value

registers store integers. In order to provide the desired

precision for many Input Types, the integer stored in the register

may be in tenths of a degree or hundredths of a millivolt. For

example, if an input is set to input type 6 and the Input Value

25.06mV because the values in the register are in units of

hundredths of a millivolt.

Value Input Status

0 No problems

1 Open sensor

2 Shorted RTD sensor

Common mode overvoltage. There is too much noise on

the sensor to make an accurate reading.

Ambient temperature error. Temperature is outside con-

troller's operating range.

1 2 ... 190 191 192 193 194 195 196 197 198 199 200 ... 319 320

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