Siemens SIMATIC ET 200SP CM 1xDALI - General information for programming

Programming
5.2 General information for programming
ET 200SP Communication module CM 1xDALI (6ES7137-6CA00-0BU0)
Manual, 06/2019, A5E46959434-AA
25
For the detailed parameter information on CM 1xDALI database and DALI device database,
refer to the following table.
Table 5- 1 Description for database parameters
Parameters
Storage location
Read-
only
Description
CM
1xDALI
DALI
devices
DALI device
status
✓ ✓ ✓ The basic status and extended status of control gears, and device status
of sensors.
Address status ✓ ✓ The address status of DALI device on the bus. CM 1xDALI cyclic queries
all the address status of DALI devices on the bus through the back-
ground detection, and detects the following results:
• Whether each DALI device has a short address
• For control gear: the information of basic status, control gear type
and extended status
• For sensor: the information of device status, number of instances and
type of each instance
Configuration
parameters
✓ ✓ The basic parameters, extended parameters, group and scene parame-
ters of control gears and device parameters, instance parameters of
sensors. The CM 1xDALI does not store the read-only parameters of the
DALI devices.
Operating hour
of control gears
✓ The CM 1xDALI stores the operating hour of configured control gears.
5.2
General information for programming
The following general information is useful for programming a DALI application:
About function block (FB)
● All the FBs in CM 1xDALI library are asynchronous instructions. It is recommended to use
the FBs in the same cyclic organization block (OB).
● Most of the FBs in the CM 1xDALI library are triggered by a rising edge, except for
DALI_CTRL
(Page 26)and
DALI_ECG_SWITCH_DIM
(Page 42).
● If you call several FBs at the same time, they are queued. You can check the output
parameters in each FB.
About DALI_CTRL
●
DALI_CTRL
(Page 26) is the basic FB of CM 1xDALI.
DALI_CTRL
must be called in a
cyclic OB, and be executed in every cycle. Do not use it in an interrupt OB.
● Each CM 1xDALI works with only one instance of
DALI_CTRL
FB.
● Specify the hardware ID of connected CM 1xDALI at the
DALI_CTRL
FB, and then
connect the
DALI_CTRL
DB with the other FBs through the InOut parameter of CM_DALI.