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APPX
Appendix 1 I/O Signals
Procedure from start to stop
This section shows the procedure to start and stop a BACnet module for each setting of CheckYDevice
*1
(0 and 1) in the
BACnet detail setting.
*1 Set the CheckYDevice in [Settings] [Basic Information] [BACnet Detail Setting] button "Interface".
For details, refer to the following section.
Page 281 Interface
BACnet module is powered ON
After powering ON, a BACnet module starts operation with the following procedure.
■ CheckYDevice in the BACnet detail setting is '0'
■ CheckYDevice in the BACnet detail setting is '1'
Operation of a BACnet module X0 X1 X2 Remarks
The value of X0 is changed to '1'. 01 0 0 Power ON the module.
The buffer memory is updated using backup information. 1 A file and backup information are read.
An object is registered to the BACnet module.
The initial value is written to the buffer memory.
After the buffer memory is updated, the value of X1 is
changed to '1'.
01
When the value of X1 is changed to '1', BACnet joining
processing is started.
1
After the module has joined to BACnet, the value of X2 is
changed to '1'.
01
A BACnet communication is started. 1 In operation
Operation of a BACnet
module
X0 X1 X2 Operation in a program Y1 Remarks
The value of X0 is changed to '1'. 010 0 0 Power ON the module.
The buffer memory is updated
using backup information.
1 A file and backup information are
read.
An object is registered to the
BACnet module.
The initial value is written to the
buffer memory.
After the buffer memory is
updated, the value of X1 is
changed to '1'.
01
Wait until the value of Y1 is
changed to '1'.
1 When the value of X1 is changed
to '1', the initial value is written to
the buffer memory.
After the initial value is written, the
value of Y1 is changed to '1'.
01
When the value of Y1 is changed
to '1', BACnet joining processing
is started.
1
After the module has joined to
BACnet, the value of X2 is
changed to '1'.
01
A BACnet communication is
started.
1 In operation
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