Mitsubishi Electric MELSEC iQ-R Series User Manual page 23

Item
Label Maximum number
of labels
Maximum number
of device points
*1 The maximum number of connections is five. Up to four connections can be used for a streaming transfer.
*2 The total number of data (size) when transferring the data to multiple host computers.
*3 High speed sampling labels and general sampling labels cannot be mixed and registered within one connection. In order to perform a
streaming transfer of high speed sampling labels and general sampling labels simultaneously, register them separately within different
connections.
*4 For example, when transferring data of 512 words per millisecond and the number of sampling times of transfer cycle is 100 (data of 100
milliseconds), the total transferred data will be 51200 words.
*5 A streaming transfer using a direct connection can be performed only for GX LogViewer.
*6 A streaming transfer may be stopped due to the load on the other Ethernet communications. In that case, review the transfer interval.
*7 The streaming transfer function is of the best effort type. Since the processing time of a module varies depending on the settings, the
parameters specified with High Speed Data Communication Library, and the status of other equipments, these functions may not run at
the set sampling cycle and transfer cycle. Run the system by fully verifying the processing time of each function when constructing it.
For details on the processing time, refer to the following:
MELSEC iQ-R High Speed Data Communication Module User's Manual (Application)
*8 The data type when reading data from the CPU module's device memory.
*9 ASCII is used for a character string.
*10 Unicode (UTF-16LE) is used for a character string.
*11 The number of available device points per label depends on the data type.
*12 Up to 32 label groups can be set. (Total number of label groups of high speed sampling and general sampling is 64.)
*13 Up to 64 label groups can be set. (Total number of label groups of high speed sampling and general sampling is 64.)
*14 The high speed sampling uses the sequence scan synchronization sampling function of a control CPU to sample the target data by
synchronizing with the sequence scan of the control CPU.
When multiple intelligent function modules use the sequence scan synchronization sampling function, note the total number of points for
target data. If it exceeds the number of points that can be sampled, an error may occur in the registration processing of an intelligent
function module registered later.
*15 If the number of device points for high speed sampling is increased, an error may occur when updating the settings. If an error occurred,
take the following corrective action.
●Check the settings of other intelligent function modules controlled by the control CPU module, and adjust it so that the total number of
device points for the sequence scan synchronization sampling function does not exceed the number of points that can be sampled.
●Turn the power OFF and ON or reset a control CPU.
●Return the number of device points to the original settings.
High Speed Data Communication Library
Item
Number of accessible high speed data communication
modules
Specification
High speed • Up to 1024 labels per label group
*11 *12
sampling • Total: up to 32768 labels
• Up to 1024 labels per label group
General
*13
sampling • Total: up to 65536 labels
High speed • Up to 4096 points per label group
*11 *12*14*
sampling • Total: up to 32768 points
15
General • Up to 4096 points per label group
*13
sampling • Total: up to 262144 points
Specification
Up to 64 modules per host computer
2 SPECIFICATIONS
2.1 Performance Specifications
2
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