Siemens SIMATIC S5-95U - Page 101

S5-95U, Second Serial Interface Technical Data, Scan On-Load Times
E Technical Data, Scan On-Load Times of the PLC
When Using the Second Serial Interface
Possible transmission rates
(adjustable in DB1)
- for programmer functions; SINEC L1; point-to-point link
(SINEC L1 protocol): 9600 bit/s
- for computer link with 3964(R) transmission protocol;
ASCII driver: 200 bit/s
300 bit/s
600 bit/s
1200 bit/s
2400 bit/s
4800 bit/s
9600 bit/s
Climatic environmental conditions
S5-90U/S5-95U System Manual
Mechanical environmental conditions
S5-90U/S5-95U System Manual
Electromagnetic compatibility, noise immunity
S5-90U/S5-95U System Manual
Specifications for IEC/VDE safety
S5-90U/S5-95U System Manual
Internal technical data
S5-90U/S5-95U System Manual
Power supply (internal)
Input voltage
- Nominal value 24 V DC
- Permissible range 20 ... 30 V
Current consumption at 24 V
- for the PLC typ. 240 mA
- External I/Os for max. config. typ. 1.1 A
Output voltage
- U 1 (for external I/O) +9 V
- U 2 (for serial interfaces) +5.2 V
Output current
- from U 1 1 A
- from U 2 (total) 0.65 A
Short-circuit protection for U 1, U 2 Yes, electronic
(programmer)
Galvanic isolation No
Protection class I class
Backup barrery S5-90U/S5-95U System Manual
Specific data onboard I/O
S5-90U/S5-95U System Manual
Specific data of the second serial interface
Main processor 80C537
Communications processor 80C32
Bus Shielded cable
Interface TTY
Transmission mode Bit-serial,
asynchronous
Data format 10 -bit/ 11-bit
character frames
(1 startbit, 7 or 8
data bits, 1 parity
bit, 1 or 2 stop bits)
Communications mechanisms
Programmer functions
SINEC L1
- Station status Slave
- Data quantity per request 1 ... 64 bytes
Point-to-point link (SINEC L1 protocol)
- Data quantity per request 1 ... 64 bytes
Computer link with 3964(R) transmission protocol
- Data quantity per request 1 ... 1024 bytes
ASCII driver
- Data quantity per request 1 ... 1024 bytes
Integrated blocks
Integrated organization blocks
- OB1 Cyclic program scanning
- OB3 Interrupt-driven program scanning
- OB13 Time-controlled program scanning
- OB21 Restart program scanning
(manual cold restart)
- OB22 Restart program scanning
(power restore)
- OB31 Cycle trigger
- OB34 Battery failure
- OB251 PID control algorithm
Integrated function blocks
- FB240 Code converter: BCD4 after 16 bits
fixed point
- FB241 Code converter: 16 bits fixed point
to BCD4
- FB242 Multiplier: 16 bit fixed point
- FB243 Devider: 16 Bit fixed point
- FB250 Read in analog value
- FB251 Output analog value
Specific data of the interface (continued)
EWA 4NEB 812 6095-02 E-1