Ampcontrol DNET-IP2, Руководство пользователя

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DNET-IP2 USER MANUAL ISSUE 4
-4-
First Data Word: <000000EE 0000AAAA>
binary
Where:
EE = 00-IPSI-IP is offline
EE = 01-IPSI-IP online IPA/IPB/IPC offline
EE = 11-IPSI-IP online IPA/IPB/IPC online
AAAA = IPSI-IP address (1…15)
LED Indication – Slave Modbus RTU
In Slave Modbus mode the IPSI-IP Modules
are scanned only on direct request from the
Host system.
IPSI-IP ‘Line’ LEDs - flash only if the IPSI-
IP Module is requested from the Master Host
system.
IPSI-IP ‘IPA’ LEDs - flash each time a block
of data is being read from the integrated
protection relay.
DNET-IP2 Rx LED - flash every time a
command is received from the Master Host
system.
DNET-IP2 Tx LED - flashes when or
whenever the DNET-IP2 Protocol Converter
responds to a Master Host command.
4.3 MODBUS AUTOSCAN
Autoscan is selected in either Modbus Master
or Slave Protocol by selecting
ID Address = 0
to isolate a DNET-IP2 Protocol Converter
from a Modbus network for the purpose of
fault finding.
In this mode the DNET-IP2 Protocol Converter
sequentially scans for IPSI-IP Modules
connected to the L1 communication line
regardless of any host commands. The serial
communication port is disabled, but the Rx
LED will still flash if data is received from a
Host Device.
LED Indication - Autoscan
In Autoscan the IPSI-IP Modules are scanned
on a regular basis but no data is transferred to
the serial port.
IPSI-IP ‘Line’ LEDs – flash at a regular rate.
IPSI-IP ‘IPA’ LEDs - flash each time a block
of data is being read from the Integrated
Protection Relay.
IP2 Tx LED - should not flash.
IP2 Rx LED - flash if data is being received,
but the data is ignored in Autoscan Mode.
4.4 IP PROTOCOL
(IP2 Protocol Mode with Slave ID
Address = 0)
IP Protocol mode is selected by placing switch
3 to the ‘OFF’ position and switch 4 to the
‘ON’ position on the Dip Switch and selecting
Slave ID Address = 0 on the rotary switch.
Switches 1 and 2 of the Dip Switch set the
Baud Rate. The available rates are 1200, 2400,
4800 and 9600.
In IP Protocol Mode the DNET-IP2 Protocol
Converter waits for a command from the Host
system. When a correctly addressed command
is received, the corresponding IPSI-IP Module
is scanned; its data is processed, and returned
to the Host Device in a block of 64 bytes.
There are no write commands available.
The Host system sends a single byte command:
<IPSI-IP-ID> no CR or LF)
Where:
<IPSI-IP-ID> is ASCII ‘A’ to ‘O’ = IPSI-IP-
ID address 1 to 15.
The response is identical to the IP2 protocol
description in the following section.
4.5 IP2 PROTOCOL
(IP2 Protocol Mode with Slave ID Address
= 1…8)
IP2 Protocol mode is selected by placing
switch 3 to the ‘OFF’ position and switch 4 to
the ‘ON’ position on the Dip Switch and
selecting Slave ID = 1…8 on the rotary switch.
Switches 1 and 2 of the Dip Switch set the
Baud Rate. The available rates are 1200, 2400,
4800 and 9600.
In IP2 Protocol Mode the DNET-IP2 Protocol
Converter waits for a command from the Host
system. When a correctly addressed command
is received the corresponding IPSI-IP Module
is scanned, its data is processed, and returned
to the Host Device in a block of 64 bytes.
There are no write commands available.