106
CET Electric Technology
Recording Depth
0 to 65535
Offset Time
0 to 43200s
Number of Parameters
0 to 64 (user defined)
Parameters 1 to 64
See
Section 5.8.11 Data Recorder Setup
Table 4-29 DR Setup Parameters
The
DR Log
is only operational when the values of
Recording Interval
and
Number of Parameters
are
all non-zero.
4.8 Communications
The PMC-592 is equipped with one RS232/422/485 port, one RS485/422 port and one 100BaseT
Ethernet port. The RS232/422/485 serial communication port supports the Modbus RTU protocol while
the Ethernet port, supports the Modbus TCP, HTTP, SNMP, SMTP and FTP protocols.
4.8.1 Modbus TCP
The PMC-592 supports the Modbus TCP protocol with a configurable IP Port No. that has a default value
of 502, which is the standard IP Port No. for Modbus TCP. PMC-592 supports up to a maximum of 10
simultaneous Modbus TCP connections, which means that up to 10 Modbus TCP Master can
communicate with the PMC-592 over Modbus TCP simultaneously.
4.8.2 HTTP
The PMC-592 supports an on-board Web Server via the HTTP protocol which allows web browsing using
a standard Web Browser such as Internet Explorer. Please refer to
3.2 Web Interface
for more details.
4.8.3 SNMP (Simple Network Management Protocol)
4.8.3.1 Overview
Simple Network Management Protocol (SNMP) is widely used in Network Management Systems (NMS)
to monitor and manage network devices for conditions that deserve administrative attention.
There are three main components in a SNMP-managed network: Managed devices, Agents and Network
Management System.
A
Network Management System (NMS)
is a piece of software or hardware that executes
applications to monitor and control network devices. It serves as the human-machine interface in
an SNMP-managed network.
An
Agent
is a software module that resides in a managed device and serves as an interface between
NMS and the physical device.
A
Managed Device
is a network node that resides on a managed network and contains an SNMP
agent. Managed devices collect and store information which is then made available to NMS via
SNMP.
PMC-592’s basic measurements and alarm data can be read and sent via SNMP. In addition, event
records can be sent to an NMS in
Trap
format. Please refer to Sections
3.2.4.5.7 Communication Setup
or
5.8.2
Communication Setup
for more information. The PMC-592 provides the following information
via SNMP.
Parameter
Information
Device Module, Device Serial Number, Firmware Version, Branch Number, Time of Power Up, PDU
Name, Panel1 Name, Panel2 Name