SKG Steam Humidifier
BACnet® Communication Module User Guide
19
Configuration
Mode
Normally the NEPICSKG is in the operational mode. The NEPICSKG can be placed in the configuration mode
at any time by throwing a single dip switch.
mode Switch
1
operational OFF
configuration ON
The difference between configuration mode and operational mode is explained in detail later in this section. The
NEPICSKG can be put into and out of the configuration mode at any time. When the unit detects a change in
the position of switch 1, it automatically restarts itself in the appropriate mode.
Baud Rate
The baud rate for the BACnet MS/TP is configurable through a pair of dip switches. The following table identifies
the baud rates used according to the switch settings:
baud rate
Switch 2 Switch 3
9600 OFF
OFF
19200 ON OFF
38400 OFF
ON
76800 ON ON
Please note, that you
must
restart the unit in order for a change of baud rate to take effect.
Configurable BACnet Properties
The following four BACnet properties are configurable and in fact most likely will need to be changed to
guarantee uniqueness of each device in a BACnet system:
Device Object.Object_Identifier *
Device Object.Object_Name
Device Object.Max_Master
Device Object.
proprietary property #1000
(which will be called
MSTP_MACaddress
for the remainder of this
section)
* Note: Because the Device’s Object_Identifier is a combination of the Device Object_Type (8) and the
Device_Instance (0-4194302) it’s decimal or hexadecimal representation tends to be incomprehensible. Even
the simple/easy-to-understand Device_Instance=1000 has an equivalent Object_Identifier of 0x020003E8
hexadecimal or 33555432 decimal. So, while it’s the device’s Object_Identifier property that can be changed
using a BACnet WriteProperty service, this document will talk mostly about Device_Instances.
