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Pin Configuration
Threaded hole to fix PROFIBUS connector
5
9
.
.
.
.
.
.
.
6
1
NOTE
An inch screw thread (#4-40UNC) is used to fix the connector to the ME1PB1-L.
Signal
Pin
Name
Description
Wire color
code
1
—
—
Not used
—
2
—
—
Not used
—
3
B/B'
RxD/TxD-P
Receive/send data -P
Red
4
—
—
Not used
—
5
C/C'
Data Ground
—
DGND
6
—
Voltage +
—
VP
7
—
—
Not used
—
8
A/A'
RxD/TxD-N
Receive/send data -N
Green
9
—
—
Not used
—
Signal used to connect the bus terminator.
Connection of the PROFIBUS/DP cable
Red Green
ME1PB1-L
3
PROFIBUS cable
RxD/TxD-P
8
RxD/TxD-N
Bus Terminator
Each end of the PROFIBUS DP network must be terminated with a resistor.
Since the ME1PB1-L is not equipped with a built-in terminating resistor, use a
PROFIBUS connector with built-in bus terminator if the ME1PB1-L is situated at
the beginning or end of a network.
It is recommended to use a bus terminator with the following specifications:
VP (6)
R
= 390
±2 %,
1/4 W
u
RxD/TxD-P (3)
R
= 220
±2 %, 1/4 W
tA
RxD/TxD-N (8)
R
= 390
±2 %, 1/4 W
d
DGND (5)
Specifications
General Specifications
Item
ME1PB1-L
Internal current consumption (5 V DC)
0.55 A
Weight
0.14 kg
Performance Specifications
Item
ME1IPB1-L
PROFIBUS DP station type
PROFIBUS DP Master Class 1
Electrical standard
EIA-RS485 compliant
Medium
Shielded twisted pair cable
Bus (tree topology when repeat-
Network topology
ers are used)
Between DP-Master and DP-
Master: Token passing method
Data link method
Between DP-Master and DP-
Slave: Polling method
Encoding method
NRZ
Transmission speed
9.6 kbps to 12 Mbps
Max. 8192 bytes
Input data
(max. 244 bytes/slave)
Transmission data
size
Max. 8192 bytes
Output data
(max. 244 bytes/slave)
Number of repeaters per communica-
max. 3
tion path
Number of stations per segment
max. 32 (including repeaters)
Number of slaves per ME1PB1-L
max. 125
Segment
Max. bus length
Transmission
length
when using
speed
3 repeaters
9.6 kbps
19.2 kbps
1200 m
4800 m
93.75 kbps
Segment length
187.5 kbps
1000 m
4000 m
and bus length
500 kbps
400 m
1600 m
1.5 Mbps
200 m
800 m
3 Mbps
6 Mbps
100 m
400 m
12 Mbps
This is also the maximum bus length when no repeater is used.
With each repeater installed in the PROFIBUS DP network, the transmission dis-
tance is extended by the length of one segment.
External dimensions
DIN rail
centre
4
95
28.5
All dimensions are in "mm".
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