Operation
External On/Off via Release input
48
Solenoid-Diaphragm Dosing Pump
MAGDOS LP
© Lutz-Jesco GmbH 2014
Operating Instructions
BA-10231-02-V03
11.2.5 Network mode (MAGDOS LP-Net only)
11.2.5.1 Selecting the operating mode
1.
Press
Menu
.
2.
Use the
or
key to choose the
Operating mode
menu item
and press
OK
.
3.
Use the
or
key to choose the
Network mode
menu item and
press
OK
.
The dosing pump displays the start screen of
Network mode.
Fig. 11-15: Start screen of Network mode
In
Network mode,
the signal that is connected to the Ethernet
connection controls the dosing pump's stroke frequency and number of
strokes (see page 31). In addition, it is possible to transmit in the oppo-
site direction all the disturbance and status messages (see „Addresses
of MODBUS TCP/IP protocol (MAGDOS LP-Net)“ on page 65).
You do not need to make any further configurations in the operating
mode.
You must, however, enter or check the IP address (see „Set "IP
address" menu item (MAGDOS LP-Net only)“ on page 37).
The dosing pump has a globally unique MAC number for unambiguous
identification (for example: "00-C0-3D-00-27-8B“). To uniquely identify
the dosing pump on a TCP/IP network, it must be given an IP number
(for example: "169.254.55.114"). The local network administrator
assigns the IP number. There is no DHCP function to automatically
assign numbers.
If you operate several dosing pumps on one network, their IP addresses
must be matched with each other to differentiate them and to make
possible unique addressing.
TCP/IP packets must conform with the Modbus TCP/IP protocol; this
means that they can be sent from and received by the TOPAX DX Net
multi-channel controller, by an Ethernet-capable PLC or a PC control
console.
You can only operate the dosing pump in a local TCP/IP network (not via
a gateway).
The dosing pump monitors the network connection. If packets fail, the
dosing pump automatically stops delivery. This means that the PLC or
the PC control console must continuously trigger the dosing pump in an
interval of less that one second.
A Web server is integrated in the dosing pump. To check the network
connection, you can surf to the Web server from a PC with a Web
browser and read out the current delivery capacity. Addressing is by
means of the IP address.
For more information about parameterising the Modbus TCP/IP protocol,
see „Addresses of MODBUS TCP/IP protocol (MAGDOS LP-Net)“ (see
page 65).
11.3 External On/Off via Release input
Regardless of the selected operating mode, you can start or stop the
MAGDOS LP dosing pump by means of the closed switching contact on
the Release input.
If you set the function (see „Set "Release input" menu item“ on
page 35), the system displays in the selected operating mode the
symbol for configuration of the Release input (see also “Explanation of
the menu icons” on page 32).
Fig. 11-16: Start screen of pulse input with icon for open contact
11.3.1 Starting the dosing pump
If
Run = contact
is set:
Close the switching contact on the Release input.
Dosing pump has started.
If
Run = open
is set:
Open the switching contact on the Release input.
Dosing pump has started.
11.3.2 Stopping the dosing pump
If
Run = contact
is set:
Open the switching contact on the Release input.
Dosing pump has stopped.
If
Run = open
is set:
Close the switching contact on the Release input.
Dosing pump has stopped.
11.4 Decommissioning the dosing pump
Perform the following working steps:
1.
Stop the dosing pump in accordance with the selected operating
mode.
2.
Unplug the dosing pump's mains plug from the power supply.
3.
Disconnect all electrical connections.
4.
Depressurize all the hydraulic parts in the system.
5.
Unplug all the hydraulic connections on the dosing pump.
6.
Empty the dosing head.
7.
Remove any residual dosing medium from the dosing head by
flushing the system with a washing agent. Ensure that the washing
agent is compatible with the dosing medium.
Dosing pump is decommissioned.
Network mode
Menu
Start
Liter
h
0%
0.00
Analog input
Menu
Start
Liter
h
0%
0.00
g
p
g
p
Setup
p
