Flowserve 400MD Logix - Manual (Page 49)

Table 8.12 IS Function Block Parameter List
Index Origin Name Store Date Type Default Value
0 STND INPUT_SELECTOR SRW Record BLOCK 0
1 STND ST_REV SR Simple UNSIGNED16 0
2 STND TAG_DESC SRW Simple OCTET_STRING “ “
3 STND STRATEGY SRW Simple UNSIGNED16 0
4 STND ALERT_KEY SRW Simple UNSIGNED8 0
5 STND MODE_BLK SRW Record MODE 0x01;0x01;0x19;0x10
6 STND BLOCK_ERR R Simple BIT_STRING 0
7 STND OUT NRWO Record FLOAT_S 0x1C;0.0
8 STND OUT_RANGE SRW Record SCALE 100.0;0.0;0;0
9 STND GRANT_DENY RW Record ACCESS_PERM 0;0
10 STND STATUS_OPTS|STATUS_OPTS_IS SRW Simple BIT_STRING 0
11 STND IN_1 RWI Record FLOAT_S 0x08;0.0
12 STND IN_2 RWI Record FLOAT_S 0x08;0.0
13 STND IN_3 RWI Record FLOAT_S 0x08;0.0
14 STND IN_4 RWI Record FLOAT_S 0x08;0.0
15 STND DISABLE_1 RWI Record DISC_S 0x08;0
16 STND DISABLE_2 RWI Record DISC_S 0x08;0
17 STND DISABLE_3 RWI Record DISC_S 0x08;0
18 STND DISABLE_4 RWI Record DISC_S 0x08;0
19 STND SELECT_TYPE SRW Simple UNSIGNED8 0
20 STND MIN_GOOD SRW Simple UNSIGNED8 0
21 STND SELECTED RO Record DISC_S 0x1C;0
22 STND OP_SELECT RWI Record DISC_S 0x08;0
23 STND UPDATE_EVT RW Record ALARM_EVENT 0;0;0,0;0;0;9;0
24 STND BLOCK_ALM RW Record ALARM_DISC 0;0;0,0;0;0;0;8;0;0
The functionality of these parameters follows the standard Fieldbus definitions as defined in the Foundation Fieldbus specifications.
8.12 Output Splitter Function Block
OS Block Description
The output splitter block provides the capability to drive two control outputs from a single input. Each output is a linear function of some
portion of the input. Back calculation support is provided using the same linear function in reverse. Cascade initialization is supported by a
decision table for combinations of input and output conditions.
This block would normally be used in split ranging or sequencing of multiple valve applications. A typical split range application has both valves
closed when the splitter input is 50%. One valve opens fully as the input drops to 0%. The other valve opens as the input rises above 50%. A
typical sequencing application has both valves closed at 0% input. One valve opens fully as the input rises to 50%, and the other stays shut.
The second valve opens as the input rises above 50%, and the first valve may remain open or shut off quickly. Because this block is in the
control path, it is able to pass limit and cascade initialization information back to the upstream block.
Table 8.13 OS Function Block Parameter List
Index Origin Name Store Date Type Default Value
0 STND OUTPUT_SPLITTER SRW Record BLOCK 0
1 STND ST_REV SR Simple UNSIGNED16 0
2 STND TAG_DESC SRW Simple OCTET_STRING “ “
3 STND STRATEGY SRW Simple UNSIGNED16 0
4 STND ALERT_KEY SRW Simple UNSIGNED8 0
5 STND MODE_BLK SRW Record MODE 0x01;0x01;0x31;0x10
6 STND BLOCK_ERR R Simple BIT_STRING 0
7 STND SP RW Record FLOAT_S 0;0.0
Logix 3400MD Digital Positioner LGENIM3405-02 11/13
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