ProSoft Technology MVI56-DFCM User Manual
Page 90
Reference
MVI56-DFCM ♦ ControlLogix Platform
User Manual
DF1 Half/Full Duplex Master/Slave Serial Communication Module
Page 90 of 106
ProSoft Technology, Inc.
September 24, 2014
Block Format for Read
Word Offset in Block
Data Field(s)
Description
0
Reserved
Reserved (0)
1
Write Block ID This is the next Write Block requested by the module.
2
Year
This field contains the four-digit year for the new time
value.
3
Month
This field contains the month value for the new time.
Valid entries for this field are in the range of 1 to 12.
4
Day
This field contains the day value for the new time. Valid
entries for this field are in the range of 1 to 31.
5
Hour
This field contains the hour value for the new time. Valid
entries for this field are in the range of 0 to 23.
6
Minute
This field contains the minute value for the new time.
Valid entries for this field are in the range of 0 to 59.
7
Seconds
This field contains the second value for the new time.
Valid entries for this field are in the range of 0 to 59.
8
Milliseconds
This field contains the millisecond value for the new
time. Valid entries for this field are in the range of 0 to
999.
9 to 248
Not Used
Not Used
249
Read Block ID This field contains the block identification code of 9973
to let the ladder logic know this block contains the
module's date and time information.
5.2.10 Block 9999: Cold Boot
This Block ID is sent from the ControlLogix processor to the module (output
image) when the user wants to perform a cold boot (hardware reset) operation.
This Block ID can be sent to the module when a problem is detected by ladder
logic that may be corrected by a hardware reset.
Offset
Description
Length
0
9999
1
1 to 247
Spare
247
5.2.11 Warm Boot Block (9998) MVI56-DFCM
This Block ID is sent from the ControlLogix processor to the module when the
user wants to perform a warm-boot (software reset) operation. Ladder logic can
be created to send this block to the module any time configuration data
modifications are made in the controller tags data area. This block will cause the
module to read the new configuration information and to restart.
Offset
Description
Length
0
9998
1
1 to 247
Spare
247