User Manual

6-8
IM 04L21B01-17EN
Input Register Data Data Type
306001 List of alarms of measurement channels 001 to 004
Bit string
| |
306003 List of alarms of measurement channels 009 to 012
• Register structure
4ch 3ch 2ch 1ch
Level 3
Level 4
Level 2
Level 1
Indicates the alarm status of four channels in one register. Set to 1 when alarm is activated.
The figure is an example of register 306001 (measurement channels 001 to 004).
306021 List of alarms of computation channels 101 to 104
Bit string
| |
306026 List of alarms of computation channels 121 to 124
• Register structure: Same as the list of alarms of measurement channels.
Note: Input registers 306001 to 306026 can be accessed consecutively. All unassigned register
bits are read as zeroes.
Input Register Data Data Type
309001 Year
16-bit signed integer
309002 Month
309003 Day
309004 Hour
309005 Minute
309006 Second
309007 Millisecond
309008 DST
6.3 Modbus Protocol Specifications