Mitsubishi Electric CR800 Series - SLMP Connection; Function Overview; Supported Version; Specifications

3 Description of functions
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3.5. SLMP Connection
3.5.1. Function Overview
Please note that the functions listed here apply only to the CR800 series, and not the CR750/CR751 series.
SLMP is a common protocol for seamless communication between applications. Users do not have to be concerned with
network layers or boundaries. SLMP communications are available among devices that can transfer messages by SLMP
(programmable controllers, personal computers, HMIs and others). (For the details of the SLMP compatibility of external
devices, refer to the Instruction Manual of external devices.)
The CR800 Series supports the SLMP communication server function.
3.5.2. Supported version
Controller type
Version
Remarks
CR800-R
CR800-D
All versions CR75x-Q and CR75x-D are not supported
CR800-Q
A2 or later
3.5.3. Specifications
The following section describes the specifications of the SLMP-compatible device and SLMP communication.
3.5.3.1. SLMP Specifications
The SLMP specifications for the message sent by an external device or with the communication protocol support function
are as follows.
Item
Communication data
code
Description Reference
SLMP
∙ ASCII code
∙ Binary code
This is the same message format as that for
MC protocol QnA-compatible 3E frame and
4E frame.
3.5.6.1 Request Message
Compared to communication with ASCII code, communication with binary code involves approximately half the amount of
communication data.
3.5.4. Parameters
Specify settings with the following parameters.
Parameter
name
No. of arrays
No. of
characters
Description Factory setting
SLMPPORT
Integer 1
Set the SLMP server communication port No. (1024 to 65535)
45237
SLMPCP Integer 1
Set the SLMP server communication protocol.
0: TCP
1: UDP
1
SLMPNWNO
Integer 1
Set the SLMP network number. (1 to 239)
1
SLMPNDID
Integer 1
Set the SLMP station number. (1 to 120)
1