Table of Contents
Advertisement
USB
The USB port is optional and is used to connect external
devices compliant to the USB standard.
The connector is Type A and the port supports version
USB 2.0, with speed up to 480 Mbit/s.
The port is able to issue a current of 500 mA at 5 Vdc to
power USB devices.
The maximum length allowed for the USB cable is 5 metres.
Transfer cable
It is possible to directly access the USB port of the controller
from the panel using the transfer cable (accessory to order
separately).
To fit the socket of this cable, the panel thickness, in the
position chosen, should not exceed 2 mm.
SD Card
The SD Card slot is optional and allows use of the SD Card
mass memories to store data and applications.
The SD Card can be used and removed at will.
Before removing it, make sure that there are no writing ope-
rations in progress.
RS232
The RS232 port is optional.
Considering that the RS232 port is not insulated, it is ne-
cessary to disconnect the power to the Integrated Controller
and Operator Panel and to the device to be connected be-
fore connecting them.
The connection cable must be screened and not exceed a
length of 5 metres.
Tighten the cable connector to that of the controller using
the special screws.
1
Pin
Name
1
DCD
Data Carrier Detect
Received
2
RxD
Data
3
TxD
Transmitted Data
4
DTR
Data Terminal Ready Output
5
GND
Ground
6
DSR
Data Set Ready
7
RTS
Request To Send
8
CTS
Clear To Send
9
RI
Ring Indicator
RS485
The RS485 port is optional.
Considering that the RS485 is opto-isolated, it is not neces-
sary to disconnect the power to the Integrated Controller
and Operator Panel and to the device to be connected be-
fore connecting them.
Tighten the cable connector to that of the controller using
the special screws.
16
9
Description
Signal Flow
Input
Input
Output
Mass
Input
Output
Input
Input
1
Pin
Name
1
2
TX/RX+
3
4
TX/RX-
5
GND
6
7
8
9
Tx/Rx+
Tx/Rx-
Figure 14 - RS485 bus line termination
The line termination is not fitted in the controller.
It is therefore necessary to fit two terminations
(resistor 120 Ω, ¼ W, 5%) at the ends of the RS485
bus, as shown in figure.
The RS485 connection can be used successfully over long
distances and in environments characterised by considera-
ble disturbance. The maximum length of the cable depends
on the transmission speed, as shown in figure 15.
1000 m
100 m
10 m
10 kb/s
100 kb/s
Max data transmission speed with AWG24 cable
Figure 15 - RS485 max transmission speed
80991C_MHW_GF_VEDO SL_09-2017_ENG
9
Description
Data +
Data -
Ground
1
2
n
...
1 Mb/s
10 Mb/s
Advertisement
Table of Contents
