Siemens SIMATIC ET 200SP CM 1xDALI - Page 34

Programming
5.4 Addressing function blocks
ET 200SP Communication module CM 1xDALI (6ES7137-6CA00-0BU0)
Manual, 06/2019, A5E46959434-AA
33
Parameter
The following table shows the parameters of the function block:
Parameter
Declaration
Data type
Memory
area
Description
SCAN Input BOOL I, Q, M, D,
L or Con-
stant
Start the scan procedure upon a rising edge.
DEV_TYP
E
USInt I, Q, M, D,
L or Con-
stant
Select the device type:
• 1: Control gear
• 2: Input device (Sensor)
ADDRES
S
USInt I, Q, M, D,
L or Con-
stant
Select the address information of scanned devices:
• 0 to 63: Scan one single short address, it is generally used to
solve the conflict of short address.
• 253: Only scan the unaddressed devices.
• 255: Scan all the devices.
CANCEL BOOL I, Q, M, D,
L or Con-
stant
CANCEL = 1: Stop current scan procedure, and return an error.
CM_DALI InOut "DALI_CT
RL"
The data block of
DALI_CTRL
specifies the CM 1xDALI which com-
municates with the current function block.
BUSY Output BOOL I, Q, M, D,
L
Status parameter:
• BUSY = 0: Processing of job is terminated.
• BUSY = 1: Job is still being committed.
ACTIVE BOOL I, Q, M, D,
L
Status parameter:
• ACTIVE = 0: Job is not yet started.
• ACTIVE = 1: Job is being executed.
DONE BOOL I, Q, M, D,
L
Status parameter:
• DONE = 0: Job is not yet started or still executing.
• DONE = 1: Job is executed without errors.
ERROR BOOL I, Q, M, D,
L
Status parameter:
• ERROR = 0: No error occurs.
• ERROR = 1: Error occurs during processing.
STATUS BYTE I, Q, M, D,
L
When ERROR = 0, STATUS has the
following values:
• 16#00: Idle
• 16#01 to 16#40: Scanning devic-
es. The value will be increased
when the CM 1xDALI scan a de-
vice.
• 16#41: Assigning short address.
• 16#42: Updating address status.
• 16#7F: Completed
When ERROR = 1, STATUS
shows the detailed error
code. For the detailed mean-
ing of each error code, refer
to Parameter STATUS
(Page 106).