Atlas Copco PowerMACS 4000, User Manual

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PLC
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The following shared memory variable also reflects the state and status of the bolts. Even though they are
defined as shared memory variables, which mean that the PLC application can write to them, they should
be used as inputs only.
Variable Type Use
BOLTGROUPS BOLT_GROUPS_ARR This is an array of 50 WORDS (16 bit unsigned integers)
where each element represents the groups that a particular
bolt belongs to.
The respective bits in BOLTGROUPS[x] have the following
meaning (bit 0 is the least significant):

0: (value 1) Bolt x belongs to group 1

1: (value 2) Bolt x belongs to group 2

2: (value 4) Bolt x belongs to group 3

3: (value 8) Bolt x belongs to group 4
:

8: (value 256) Bolt x belongs to group 9

9: (value 512) Bolt x belongs to group 10

10 -15: Reserved
BOLTSTATUS_EXT BOLT_STATUS_EXT_
ARR This variable is an array of 50 elements of type
BOLT_STATUS_EXT_TYPE. Each element indicates the
status of the last tightening for a bolt.
The BOLT_STATUS_EXT_TYPE is a structure containing
the following BOOL flags:

OK True if result is OK or OK after RM (OKR).

OKRM True if result is OK after RM.

NOK True if result is Not OK (NOK), Not OK due to RM
(NOKRM) or Stop and Terminate Not OK (TERMNOK).

NOKRM True if result is Not OK due to RM (NOKRM).

TERMNOK True if result is Stop and Terminate Not OK
(TERMNOK).
The value of this variable is only changed as a result of
running a cycle. It is updated as follows:

When the station is started all bolts that are set to be
Disconnected OK/NOK, either using the PLC output
BOLTCONTROL or the ToolsTalk PowerMACS forms
"Mode Table" or "Bolt Set Up", the corresponding OK or
NOK flag is set immediately. For all other bolts all status
flags are cleared.

When the cycle is ready the relevant flags are set.
Use this variable together with BOLTSTATE as an
alternative to the earlier BOLTSTATUS input.