KEYENCE DL-DN1 User Manual
Page 65
3-3 Explicit Messaging
3-35
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- DeviceNet Compatible Network Unit DL-DN1 User’s Manual (GT2) -
(ID:01) and cannot be read/written to units other than the main unit (ID:01).
For details on batch setting, refer to the
GT2-100 series User's Manual.
*15 These parameters cannot be read/written when sensor amplifiers other than
GT2-71MC* series are used.
*16 These parameters are available only when the calculation function is used.
Calculations other than for standard difference display are effective only on the
main unit (ID:01). These parameters read the R.V. value (synchronized with the
calculation results) of the main/expansion unit(s) for the main unit to calculate
the results.
For example, set the instance ID to "15" (DEC) and the attribute ID to 67 (HEX)
and send the command when you read the value of the expansion unit on which
calculation result of the main unit is based.
Calculations for standard difference display are effective only on the expansion
units (ID:02 to ID:15). These parameters read the R.V. value (synchronized with
the calculation results) of the main/expansion unit(s) for the expansion unit to
calculate the results.
For example, set the instance ID to "35" (DEC) and the attribute ID to 65 (HEX)
and send the command when you read the value of the main unit (ID:01) on
which calculation result of the expansion unit (ID:03) is based.
This read command is useful when you use the calculation function with
the detection mode set to hold detection (peak hold) and when you read
the R.V. value of the main/expansion unit(s) for calculation as well as the
calculation results.
The read command for the P.V. value can read the held values, while that
for the R.V. value reads the raw value when the command is received.
Therefore, the read R.V. value is not synchronized with the latest values.
This read command can read the R.V. value of each sensor amplifier for
calculating the held values.
The read R.V. values are synchronized with the held values and eliminates
the influence of communication response delay.
*17 An ASCII character string is sent back in response data (4 bytes). The data type
is DINT.
For "GT2-", the response is "4754322Dh".
*18 An ASCII character string is sent back in response data (16 bytes). The data
type is STRING.
For "GT2-71*/75*", the response is "4754322D37312A2F37352A0000000000h".
Reference