SATEC EM720 Operation Manual - Manual (Page 122)

Chapter 5 Configuring the EM720
Configuring Communication Protocols
122 EM720 Power Quality and Revenue Meter
Parameter Options Default Description
Analog Input Object 32-bit
32-bit –Flag
16-bit
16-bit –Flag 16-bit -Flag The default AI object variation for
requests with qualifier code 06
when no specific variation is
requested
Analog Input Change
Event Object 32-bit -Time
32-bit +Time
16-bit -Time
16-bit +Time 16-bit +Time The default AI change event object
variation for requests with qualifier
code 06 when no specific variation
is requested
Binary Counters (BC)
Number of BC to Generate
events 0-64 3 0 The total number of BC change
event points for monitoring
Binary Counter Object 32-bit +Flag
32-bit –Flag
16-bit +Flag
16-bit –Flag 32-bit -Flag The default BC object variation for
requests with qualifier code 06
when no specific variation is
requested
Binary Counter Change
Event Object
32-bit -Time
32-bit +Time
16-bit -Time
16-bit +Time 32-bit +Time The default BC change event
object variation for requests with
qualifier code 06 when no specific
variation is requested
Frozen Binary Counter
Object
32-bit +Flag
32-bit –Flag
32-bit +Time
16-bit +Flag
16-bit –Flag
16-bit +Time 32-bit -Flag The default frozen BC object
variation for requests with qualifier
code 06 when no specific variation
is requested
DNP General Options
16-bit AI Scaling Disabled
Enabled Enabled Allows scaling 16-bit analog input
objects (see description below)
16-bit BC Scaling x1, x10,
x100, x1000 x1 Allows scaling 16-bit binary
counter objects (see description
below)
Re-mapping Event Points Disabled
Enabled
Disabled Allows re-mapping event points
starting with point 0.
SBO Timeout 1 2-30 sec 10 Defines the Select Before Operate
(SBO) timeout when using the
Control-Relay-Output-Block object
Time Sync Period 2 0-86400 sec 86400 Defines the time interval between
periodic time synchronization
requests
Multi Fragment Interval 50-500 ms 50 Defines the time interval between
fragments of the response
message when it is fragmented
1 The Select Before Operate command causes the device to
start a timer. The following Operate command must be sent
before the specified timeout value expires.
2 The device requests time synchronization by bit 4 in the
first octet of the internal indication word being set to 1 when the
time interval specified by the Time Sync Period elapses. The
master should synchronize the time in the device by sending the
Time and Date object to clear this bit. The device does not send
time synchronization requests if the Time Sync Period is set to 0.
3 The total number of AI, BI and BC change event points may
not exceed 64. When you change the number of the change
event points in the device, all event setpoints are set to defaults
(see Configuring DNP Event Classes below).