FC 212 - Data Acquisition Digital Input / Loop

The data acquisition digital (DADIG function code 211) and the data acquisition digital input/loop (DADIG I/L function code 212) function code pair is for digital data acquisition of boolean signal functions. The DADIG and DADIG I/L function codes complement the data acquisition analog (DAANG) and the data acquisition analog input/loop (DAANG I/L) function codes by providing the functions of the data acquisition analog block for boolean signals. The DADIG function code pair provides a means to accomplish a number of unique data acquisition, alarm detection and management functions related to boolean logic signals implemented in Symphony systems.

 

The DADIG function codes support a range of features on the Conductor VMS series human system interface (HSI). Commands are accepted from HSIs and alarm information is supplied to HSIs through exception reports. The DADIG I/L function code provides a means of importing data from the DADIG block in Symphony systems.

 

NOTE: If a module utilizes an imported digital value from the control network in several instances in its configuration, the function blocks that utilize that digital value must be connected to only one DAANG I/L block. Exception reports from the same (control network, HCU, module and block) address cannot be imported to more than one destination within a single module configuration.

 

 

 

 

Outputs:

Blk

Type

Description

N

B

Source reported logic level

N+1

R

Source extended status

 

 

 

Specifications:

Spec

Tune

Default

Type

Range

Description

S1

N

0

I

0 - 31

Source module address

S2

N

0

I

Note 1

Source DADIG block number

S3

N

0

I

0 - 250

Cnet node address

S4

N

0

I

0 - 250

Source loop number

S5

N

0

I

0 - 255

Spare integer input

S6

N

0.000

R

Full

Spare real input

S7

N

0

I

Note 1

Spare boolean input

 

NOTES:

1. Maximum values are:9,998 for the BRC-100, IMMFP11/12 and 31,998 for the HAC

 

 

 

212.1   Explanation

 

The DADIG I/L provides the ability to access the DADIG outputs from an Cnet communication highway. The DADIG I/L outputs the two DADIG block outputs (reported logic level and extended status).

 

 

212.1.1  Specifications

 

S1

Module address of the harmony controller containing the monitored DADIG block.

 

S2

Block number of the monitored DADIG block.

 

S3

Harmony control unit (HCU) address of the module containing the monitored DADIG block.

 

S4

Loop number of the Harmony control unit containing the monitored DADIG block.

 

S5, S6 and S7

Spare.

 

 

 

212.1.2   Outputs

 

N

Boolean output equal to output N of the monitored DADIG (function code 211) block specified by S1, S2, S3 and S4.

 

N+1

Real value containing the numeric representation of the extended status of the monitored DADIG (function code 211)) block specified by S1, S2, S3 and S4 currently in use.

 

The extended status and alarm detection modes may be converted into individual logic level by configuration of real demultiplexers (function code 126). Table 212-1 is a decoded extended status bit map.

 

 

Bits 0 through 2

Unused.

 

Bits 3 through 4

The mode field indicates which of the three possible DADIG (function code 211) inputs are currently selected through the DADIG input select block input <S1> to be routed to the DADIG reported logic state output N.

 

Bit 5

The permit input selection field indicates the state of the monitored DADIG blocks permit input select input <S2>.

 

Bit 6

The quality overridden field indicates when the monitored DADIG blocks quality is being overridden through the DADIG

quality override block input <S14>.

 

Bit 7

When the monitored DADIG block alarm state latch function is enabled through the DADIG alarm state latch enable input <S15>, this field indicates when the outputs are latched.

 

Bit 8

This field contains the state of the DADIG blocks reported logic output N.

 

Bit 9

The E-STOP field indicates when the monitored DADIG block is execute stopped through a HSI or when the E-STOP state is being forced through the DADIG quality override block input <S14>.

 

Bit 10

The no report field indicates when the monitored DADIG block has been placed in no report mode through the DADIG block input select <S1> or through a HSI command.

 

Bit 11

The output suspect quality indication is set through the monitored DADIG block quality override block input <S14>.

 

Bit 12

This field is the monitored DADIG block alarm suppression indication. This bit can be set by two of the monitored DADIG

block functions (on alarm suppression and by de-alarm).

 

1. For alarm suppression, this bit can operate in one of two modes selected by the DADIG's alarm mode control <S9>, bit eight.

 

-  If bit eight of DADIG <S9> equals zero, this indication will be set when alarm suppression is selected and enabled.

 

Alarm suppression is selected through the DADIG alarm mode control <S9>. Alarm suppression is enabled through either the DADIG alarm suppression enable block input <S13> or a HSI command sent to the DADIG block.

 

-  If bit eight of DADIG <S9> equals one, this indication will be set when the alarm suppression function is suppressing an alarm.

 

2. For de-alarm, this bit will be set when an alarm is being de-alarmed.

 

Bit 13

The return alarm indication toggles each time the monitored DADIG blocks alarm is returned. Return alarm is enabled through the DADIG alarm mode control <S9> and uses the return alarm/de-alarm time period reference <S12>.

 

Bit 14

The alarm field is set when the alarm is selected through the DADIG blocks alarm mode control <S9> and an alarm condition exists at the monitored DADIG block.

 

Bit 15

The quality indication is set to indicate when the DADIG block is bad quality. Quality reflects the quality of the selected DADIG block input <S3>, <S4> or <S5> and can be forced bad (set), or forced good (cleared) through the DADIG quality override block input <S14>. This field also will be set if an error exists in the link between the DADIG I/L and DADIG blocks.