Siemens SIMATIC S5-95F - Page 526

S5-95F Module Spectrum
CP 521 SI Communications Processor (6ES5 521-8MA21)
Technical Specifications
Galvanic isolation TTY signals are
isolated
Memory submodule EPROM/EEPROM
Serial interface V.24/TTY passive
(active)
Transmission Asynchronous
10-bit character frame/
11-bit character frame
Transmission rate 110 to 9600 baud
Permissible cable length
- V.24 15 m
- TTY Results from:
(voltage drop on
cable)+
(receiver-typ. voltage
drop 1.5 V) or
(transmitter-typ. voltage
drop 0.9 V)
max. 1000 m (?? ft.)
LED displays
- TxD (green) Transmitting
- RxD (green) Receiving
- RTS (green) Ready to send
- BATT (yellow) Battery failure
Back-up battery
Lithium 1/2 AA 3.6 V/850 mAh
Current consumption
from +9 V typ. 140 mA
Power loss of module typ. 1.2 W
Weight approx. 500 g (19.3 oz.)
EMC Characteristics for Use in S5-95F
Electrostatic discharge
to IEC 801-2 Severity rating: none
tested with 4 kV air discharge
<2 kV contact
discharge
Electromagnetic fields
to IEC 801-3 Severity rating 2
tested with 3 V / m
Fast transient burst
to IEC 801-4 Severity rating 3
tested with 1 kV on signal lines
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+9 V
GND
Data
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V.24
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TTY
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module
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CP 521 SI
SERIAL INTERFACE
6ES5 521-8MA21
123456
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Battery
3,4 V
850 mAh
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TXD
RXD
RTS
BATT
EWA 4NEB 812 6210-02 A-31