Flowserve 400MD Logix - Manual (Page 47)

NOTE: SIMULATE.ENABLE can only be set TRUE when the Simulate dip switch is in the “On” position when the device is powered up or a pro-
cessor restart is issued.
READBACK Parameter The value and status of READBACK will come from either the OUT parameter or SIMULATE.SIMULATE, determined by
the state of the OUT_READBACK feature in the Resource Block. READBACK is in XD units.
When RS.FEATURE.OUT_READBACK is set TRUE, SIMULATE.SIMULATE is used for READBACK. When FEATURE.OUT_READBACK is FALSE, OUT
will be used for READBACK.
NOTE: The default value for RS.FEATURE.OUT_READBACK is FALSE. With the Logix 3400MD, this feature should always be set TRUE to allow
the transducer block position value to be the source of READBACK.
READBACK_OUT ALLOWS THE USER A LINKABLE PARAMETER FOR VALVE POSITION.
PV Parameter The PV value is simply the READBACK value, re-scaled from XD units to PV units. PV status is copied directly from READBACK
status.
8.9 Digital Output Function Block
DO Block Description
Operates according to Section 10.18
Table 8.10 DO Function Block Parameter List
Index Origin Name Store Date Type Default Value
0 STND DISCRETE_OUTPUT_BLOCK 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;0x79;0x30
6 STND BLOCK_ERR R Simple BIT_STRING 0
7 STND PV_D R Record DISC_S 0;0
8 STND SP_D NRW Record DISC_S DO_VAL_SP_D_STATUS;DO_VAL_SP_D_VALUE
9 STND OUT_D NRWO Record DISC_S 0x1C;0
10 STND SIMULATE_D RW Record SIM_DISC 0;0;0;0;1
11 STND PV_STATE SRW Simple UNSIGNED16 0
12 STND XD_STATE SRW Simple UNSIGNED16 0
13 STND GRANT_DENY RW Record ACCESS_PERM 0;0
14 STND IO_OPTS|IO_OPTS_DO SRW Simple BIT_STRING 0
15 STND STATUS_OPTS|STATUS_OPTS_DO SRW Simple BIT_STRING 0
16 STND READBACK_D R Record DISC_S 0;0
17 STND CAS_IN_D RWI Record DISC_S 0x1C;0
18 STND CHANNEL SRW Simple UNSIGNED16 0
19 STND FSTATE_TIME SRW Simple FLOATING_POINT 0
20 STND FSTATE_VAL_D SRW Simple UNSIGNED8 0
21 STND BKCAL_OUT_D RO Record DISC_S 0;0
22 STND RCAS_IN_D RW Record DISC_S 0x1C;0
23 STND SHED_OPT SRW Simple UNSIGNED8 0
24 STND RCAS_OUT_D R Record DISC_S 0;0
25 STND UPDATE_EVT RW Record ALARM_EVENT 0;0;0,0;0;0;9;0
26 STND BLOCK_ALM RW Record ALARM_DISC 0;0;0,0;0;0;0;8;0;0
Block
Logix 3400MD Digital Positioner LGENIM3405-02 11/13
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