Spectrum Controls 2080sc-BAC - Manual (Page 23)

Chapter 3: Configuring the Module 3-5
User’s Manual Pub. 0300274-01 Rev. A.0
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Date. Enter the date as MM/DD/YYYY where MM is
month, DD is day, and YYYY is year. If necessary, select
the date from the calendar provided.
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Time. 24-hour time format. Enter the time in hours,
minutes, and seconds.

Device. Enter the device instance and name. The device instance
is the unique ID of a device used by BACnet. Default Device ID
is #200121. All messages directed to the module are addressed to
this ID. The allowable range is from 1 to 4,194,034. When the
protocol wishes to talk to a device, the master sends out a
‘WhoIs n’ message
1 , where n is a Device ID. The device
responds with an ‘I-Am n’ and provides the master with either an
IP address if the device is an Ethernet type, or a MAC address if
the device is an MS/TP type (RS-485). The master is then able to
talk to the device:
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Instance. Specify the device instance entry.
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Name. Enter the device name.

LAN. Specifies LAN type and communication parameters for
the LAN type selected. After saving your values, you must cycle
power on the module to allow the new settings to take effect.
1 Technically, the module sends a ‘WhoIs m to n’ message, where m is the lower limit, and n is the upper limit. It
may also send a ‘WhoIs null’, which is a broadcast to all reachable devices, and will bind all responding devices’
addresses to their device ID.