3-5-2 function block execution control, 3-6 block setting, 3-6-1 link object – Yokogawa DO202 2-Wire Dissolved Oxygen Analyzer User Manual
Page 17: 3-5-2 function block execution control -12, 3-6 block setting -12, 3-6-1 link object -12, Set link objects as shown in table 3.8
IM 12A00A01-61E
3-12 Foundation Fieldbus
Table 3.6� VCR List
VCR List
Index (SM)
VCR Number
Factory Setting
293
1
For system management (Fixed)
294
2
Server (LocalAddr = 0xF3)
295
3
Server (LocalAddr = 0xF4)
296
4
Server (LocalAddr = 0xF7)
297
5
Trend Source (LocalAddr = 0x07, Remote Address=0x111)
298
6
Publisher for AI1 (LocalAddr = 0x20)
299
7
Alert Source (LocalAddr = 0x07, Remote Address=0x110)
300
8
Server (LocalAddr = 0xF9)
301 to 325
to 325
9 to 33
Not set
3-3-5-2 Function Block Execution Control
According to the instructions given in Section 3-3-3, set the execution cycle of the function blocks and
schedule of execution.
3-3-6� Block Setting
Set the parameter for function block VFD.
3-3-6�-1 Link Object
Link object combines the data voluntarily sent by the function block with VCR. The EXA has 40 link objects.
A single link object specifies one combination. Each link object has the parameters listed in Table 3.7.
Parameters must be changed together for each VCR because the modifications made to each parameter
may cause inconsistent operation.
Table 3.7 Link Object Parameters
Sub-
index
Parameters
Description
1
LocalIndex
Sets the index of function block parameters to be combined; set “0” for Trend and Alert.
2
VcrNumber
Sets the index of VCR to be combined. If set to “0”, this link object is not used.
3
RemoteIndex
Not used in EXA. Set to “0”.
4
ServiceOperation
Set one of the following. Only one link object is used for Alert and/or Trend.
0: Undefined
2: Publisher
6: Alert
7: Trend
5
StaleCountLimit
Set the maximum number of consecutive stale input values which may be received before the input
status is set to BAD. To avoid the unnecessary mode transition caused when the data is not correctly
received by subscriber, set this parameter to “2” or more.
Set link objects as shown in Table 3.8.
Table 3.8 Factory-Settings of Link Objects (example)
Index
Link Object#
Factory Settings
30000
1
AI1.OUT
VCR#6
30001
2
Trend
VCR#5
30002
3
Alert
VCR#7
30003 to 30039
4 to 40
Not used