ABB REC 561 User Manual page 315

1MRK 580 150-XEN
Page 6 - 30
Apparatus control
Fig. 17 shows the sending part of the reservation function. From this part,
the request (RE_BAYS) from BAYCON to reserve other bays
(RE_RQ_B) are sent to other bays by broadcast, that is, to all bays at the
same time. Event Function blocks are used to send the information to
other bays (see "Event function" 1MRK 580 140-XEN).
The connection for acknowledgement (ACK_T_B) from BAYCON gives
the result that only the bay that asked for reservation gets the acknowl-
edgement back.
RE_BAYS
ACK_T_B
X_RE_BAYS
Y_RE_BAYS
Z_RE_BAYS
Interlocking information
Fig. 17 The sending part of the reservation function between bays
In REC561, one or more event function blocks are used to broadcast
information from one REC561. One or several REC561s are configured to
receive this information. Each command function block can only get
information from one event function block.
The first bit in the event function block is used for reserve request
(RE_RQ_B). This signal must be steady, so the reserve request equals
true means reserve and equals false means release.
After this reserve request bit, there is one reserve acknowledgement bit
(ACK_T_Bx) for each bay that can reserve the bay. So if three bays can
reserve the bay, three signals are used.
ACK_T_B is reset after RE_RQ_B is reset. If the RE_RQ_B remains (for
example due to communication error), ACK_T_B is reset. The
T_CAN_RE time after V_RE_RQ is reset.
After the reserve acknowledgement signals, the apparatus positions are
needed for the interlocking. This information can be of these types:
• Busbar A and busbar B is connected
• Busbar A and busbar B is disconnected
This means that the position for each apparatus is not distributed, if not
needed.
ABB Network Partner AB
EVENT
INPUT1 (RE_RQ_B)
& INPUT2 (ACK_T_B_X)
INPUT3 (ACK_T_B_Y)
&
INPUT4 (ACK_T_B_Z)
.
&

.


INPUT16

Broadcast sending to other bays
Version 1.0-00
(X80150-17)