2-156 ACH550 E-Clipse Bypass User’s Manual
Embedded fieldbus
Note: Relay status feedback occurs without configuration as defined below.
Protocol Implementation Conformance Statement (PICS) - Drive
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 = 0.
– For IDs in the range of 1 to 65,535: Parameter 5311 sets the ID directly (5317
must be 0). For example, the following values set the ID to 49134: 5311 =
49134 and 5317 = 0.
– For IDs > 65,535: The ID equals 5311’s value plus 10,000 times 5317’s value.
For example, the following values set the ID to 71,234: 5311 = 1234 and 5317
= 7.
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.
MS/TP token counter
Parameter 5316 stores the count of MS/TP tokens passed to this drive.
Drive Parameter Value
BACnet Access
Point
0122
RO 1-3 STATUS Relay 1…3 status. BI0, BI1, BI2
0123
RO 4-6 STATUS Relay 4…6 status. BI3, BI4, BI5
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