Bacnet Technical Data; Protocol Implementation Conformance Statement (Pics) - Summary - ABB ACH550-UH User Manual
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ACH550-UH User's Manual
BACnet Technical Data
Protocol Implementation Conformance Statement (PICS)
PICS Summary
BACnet Standard Device Profile. This version of ACH550 BACnet fully conforms
to the 'Application-Specific Controller' standard device profile (B-ASC).
Services Supported. The following services are supported by the ACH550:
• I-Am (Response to Who-Is, also broadcast on power-up & other reset)
• I-Have (Response to Who-Has)
• ReadProperty
• WriteProperty
• DeviceCommunicationControl
• ReinitializeDevice
Data Link Layer. The ACH550 implements MS/TP (Master) Data Link Layer. All
standard MS/TP baud rates are supported (9600, 19200, 38400 & 76800).
MAC ID / Device Object Instance. The ACH550 supports separate MAC ID and
Device Object Instance parameters:
• Set the MAC ID using drive parameter 5302. Default: 5302 = 1.
• Set the Device Object Instance using drive parameters 5311 and 5317. Default:
Both 5311 and 5317 = 0, which causes the MAC ID to "double" as the Device
Object Instance. For Device Object Instance values not linked to the MAC ID, set
ID values using 5311 and 5317:
– For IDs in the range 1 to 65,535: Parameter 5311sets the ID directly (5317
– For IDs > 65,335: The ID equals 5311's value plus 10,000 times 5317's value.
Automatic Baud Rate Detection. Set the communication baud rate using drive
parameter 5303. However, this value is "overridden" if automatic baud rate detection
is enabled and a different baud rate is detected. By default, autobaud detection is
disabled – enable by setting drive parameter 5314 to 1. When autobaud detection is
enabled, drive parameter 5315 displays the detected baud rate.
Note! Autobaud detection samples for, and adjusts to, only the standard MS/TP
baud rates (9600, 19200, 38400 & 76800).
Max Info Frames Property. Configure the Device Object Max Info Frames property
using drive parameter 5312. Default: 5312 = 1.
Max Master Property. Configure the Device Object Max Master property using drive
parameter 5313. Default: 5313 = 127.
must be 0). For example, the following values set the ID to 49,134:
5311 = 49134 and 5317 = 0.
For example, the following values set the ID to 71,234:
5311 = 1234 and 5317 = 7.
211
Embedded Fieldbus
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