Weidmuller SAI Active Universal Pro Series, Руководство пользователя

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Commissioning the PROFIBUS-DP
120 5663600000/1.4/09.09
Configuration of alarm mode threshold values
The remaining bytes in the parameters of PT100
and THERMO module determine the threshold val-
ues for the alarm detection mode. For each channel
two threshold values (16 bit wide) can be configured
as each channel can detect two thresholds and sig-
nal this as a status information in the diagnostic
data. The format of this value is as the measurement
value.
Configuration of the counter
The first parameter byte of the counter determines
the behaviour of the digital outputs and the configu-
ration of the quadrature counting mode.
Bit 0 0 = digital output 0 keeps state if
failure occurs
1 = digital output 0 enters safe
state if failure occurs
Bit 1 0 = digital output 1 keeps state if
failure occurs
1 = digital output 1 enters safe
state if failure occurs
Bit 2 Determines the safe state of Out-
put 0
Bit 3 Determines the safe state if Out-
put 1
Bit 5 to 4 00 = normal counting mode
Channel 0
01 = quadrature counting mode
Channel 0
Bit 7 to 6 00 = normal counting mode
Channel 1
01 = quadrature counting mode
Channel 1
Configuration of the counting direction
The counting direction can be inverted by parame-
ter.
Bit 0 0 = normal counting direction
Channel 0
1 = invert counting direction
Channel 0
Bit 1 0 = normal counting direction
Channel 1
1 = invert counting direction
Channel 1
Configuration of threshold values for the counter
module
Each channel has 3 different threshold values, which
must be determined by the user. The first value de-
termines the counter value, which enables the asso-
ciated digital output of the channel. The second
value determines the counter value that disables the
digital output associated with the counter channel.
The third value determines the reset value of the as-
sociated counter channel. Note that this value must
be different from zero to enable the counter func-
tionality. The values are 32bit wide as the counter
value is.