2.2
Specifications of the Modules
2.2.1
Head Station
햲
Calculation of the transmission distance [m per network], when repeaters are used:
transmission distance [m per network] = (Number of rep1) x transmission distance [m per segment]
Specifications
12
MITSUBISHI ELECTRIC
Item
ST1H-PB
PROFIBUS/DP station type
Slave station
Applicable FDL address
0 to 99 (Factory-set to FDL adress 0)
Maximum I/O points
Depends on the choosen mode: 32, 64, 128 or 256
I/O data size
Varies depending on the maximum I/O points (Refer to the following table)
Number of
connectable
slice modules
32-point mode
maximum 14 modules
64-point mode
maximum 30 modules
128-point mode
maximum 62 modules
256-point mode
maximum 63 modules
Transmission
specification
Electrical standards
and characteristics
EIA-RS485 compliant
Applicable cable
Shielded twisted pair cable
Network configura-
tion
Bus type (tree type when repeaters are used)
Data link method
Polling
Transmission encod-
ing method
NRZ
Transmission speed
and maximum trans-
mission distance
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Transmission speed
Transmission distance
[m per segment]
Max. transmission dis-
tance when 3 repeaters
are used [m]
9.6 kbps
1200
4800
19.2 kbps
45.45 kbps
93.75 kbps
187.5 kbps
1000
4000
500 kbps
400
1600
1.5 Mbps
200
800
3 Mbps
100
400
6 Mbps
12 Mbps
Repeater per
network
Maximum 3
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Number of stations
Maximum 32 (including repeater)
Number of
connectable nodes
32 nodes per segment
Programming interface
RS232 Mini-DIN socket for diagnostics and configuraton
Diagnostics LEDs
RUN, ERR, REL, DIA, BF, SYN., FRE., M0, M1
Number of occupied slices (Width)
2 slots (25.2 mm)
Number of
occupied I/O
points
Inputs
4
Outputs
4
Internal power consumption (5 V DC) 530 mA
Weight
0.1 kg