Yokogawa DO202 2-Wire Dissolved Oxygen Analyzer - Manual (Page 48)

IM 12A00A01-61E
Foundation Fieldbus 3-43
3-7 Application setting and change of basic parameters
3-7-1 Applications and selection of basic parameters
Setting Item (applicable parameters) Summary
Tag No. Sets PD Tag and each block tag.
Up to 32 alphanumeric characters can be set for both tags.
Refer to “Tag and address” in Section 3-3-4
Calibration range setup
(XD_SCALE) Sets the range of input from the transducer block corresponding to the 0% and 100%
points in operation within the AI function block. The calibrated range (0% and 100%) is the
factory default setting. Sets the range unit number of decimals required.
Output scale setup
(OUT_SCALE) Sets the scale of output corresponding to the 0% and 100% points in operation within
the AI function block. It is possible to set a unit and scale that differs from the calibration
range. Sets the range unit and the number of decimals required.
Output mode setup
(L_TYPE) Selects the operation function of the AI function block. It may be chosen from among
Direct, Indirect, and IndirectSQRT.
Direct:
The output of the transducer block is directly output only via filtering
without scaling and square root extraction.
Indirect: Output processed by proportion at the AI function block.
IndirectSQRT: Output processed by square root extraction at the AI function block.
Output signal low cut mode setup
(LOW_CUT) If the output falls below the setting of this parameter, the output is set to Zero. It can be
set individually with Direct, Indirect, and IndirectSQRT.
Damping time constant setup
(PV_FTIME) Sets the time constant of the damping (primary delay) function in the AI function block in
seconds.
Simulation setup
(SIMULATE) Performs simulation of the AI function block.
The input value and status for the calibration range can also be set.
It is recommended that this parameter be used for loop checks and other purposes.
Refer to “Simulation Function” in Section 3-4-3.
Error_config
0x00800000 (bit 23), “Sensor current abnormal (E9)”
0x00010000 (bit 16), “Call for maintenance (E16)”
0x00004000 (bit 14), “Zero out of limits (E2)”
0x00000200 (bit 9), “Temperature sensor open (E7)”
0x00000100 (bit 8), “Temperature sensor shorted (E8)” Configuration
0x00008000 (bit 15), “Zero calibration enabled”
0x00001000 (bit 12), “Auto return on”
0x00000800 (bit 11), “Salinity compensation on”
0x00000400 (bit 10), “Call for maintenance on”
0x00000100 (bit 8), “Manual pressure in mainte-
nance menu”
Index Parameter Factory valid range description
Name default
2054 CONFIGURATION* Instrument specific configuration
2055 ALARM_SUM -
2056 DEV_ALARM - Device Alarm is used to give the status of the transmitter.
Device_status in RB displays the device Alarms.
2057 TEST_1 - Service parameter
…. - 2058 to 2068 are, like 2057 and 2070, service
parameters
2070 TEST_14 - Service parameter
* Enumerated parameters (4 bytes, 32 bits) where each bit can be set individually.