Slmp Connection; Function Overview; Supported Version; Specifications - Mitsubishi Electric CR800 Series Ethernet Function Instruction Manual

3 Description of functions

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
CR800-R
CR800-D
CR800-Q

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.
Communication data
Item
SLMP ∙ ASCII code
∙ Binary code
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.
No. of arrays
Parameter
name
characters
SLMPPORT Integer 1
SLMPCP Integer 1
SLMPNWNO Integer 1
SLMPNDID Integer 1
3-34
Version
All versions
A2 or later
code
This is the same message format as that for
MC protocol QnA-compatible 3E frame and
4E frame.
No. of
Set the SLMP server communication port No. (1024 to 65535)
Set the SLMP server communication protocol.
0: TCP
1: UDP
Set the SLMP network number. (1 to 239)
Set the SLMP station number. (1 to 120)
Remarks
CR75x-Q and CR75x-D are not supported
Description
Description
Reference
3.5.6.1 Request Message
Factory setting
45237
1
1
1