Manual

7-4
IM MV1000-17E
Reading Values into External Input Channels (MV2000 only)
External input channels are an MV2000 option (/MC1).
Reads values from the server register into the MV external input channels.
The data type of external input channels is 16-bit signed integer.
The measurement range and unit are set on the external input channels. The
decimal place is determined by the external input channel’s span lower settings.
Register
Server
Data type
Read
R
MV2000
30001 to 39999
300001 to 365536
40001 to 49999
400001 to 465536
INT 16, UINT 16,
INT 32_B, INT 32_L,
UINT 32_B, UINT 32_L,
External Input data
Number: 201 to 440
Data type: 16-bit signed integer
Access
method
External Input Channel Values
The range of external input channel values is –30000 to 30000 after removing the
decimal. If a value is outside this range, the value is set to positive or negative range-
out.
Server Register Value External Input Channel Value
Greater than 30000 Positive range-out (7FFFH)
–30000 to 30000 –30000 to 30000
Less than –30000 Negative range-out (8001H)
Reading Values into Communication Input Channels
Reads values from the server register into the MV communication input channels.
Communication input data is an option (/M1 or /PM1).
The data type of communication input data is 32-bit floating point.
Communication input data can be displayed on a computation channel by writing
an expression that contains the data in an MV computation channel (/M1 or /PM1
option). The measurement range and unit are also set on a computation channel.
Register
Server
Data type
Read
R-M
MV1000 and MV2000
30001 to 39999
300001 to 365536
40001 to 49999
400001 to 465536
INT 16, UINT 16,
INT 32_B, INT 32_L,
UINT 32_B, UINT 32_L,
FLOAT_B, FLOAT_L
Communication input data
Number: C01 to C24 (MV1000)
C01 to C60 (MV2000)
Data type: 32-bit floating point
Access
method
Writing Measured Values of Measurement Channels
Writes measured values of measurement channels to server registers.
The data type of measured values is 16-bit signed integer.
Access
method
Register
Server
Data type
W
40001 to 49999
400001 to 465536
INT 16,
FLOAT_B, FLOAT_L
Measurement channel
Number: 001 to 024 (MV1000)
001 to 048 (MV2000)
Data type: 16-bit signed integer
MV1000 and MV2000
Write
7.3 Modbus Protocol Specifications