Supply voltage

Rated value (DC) 

● 24 V DC -Yes

Load voltage L+

● Rated value (DC)  24 V 

● permissible range, lower limit (DC) 20.4 V 

● permissible range, upper limit (DC) 28.8 V

Input current

Inrush current, max. 12 A; at 28.8 V

from supply voltage L+, max. 700 mA; 110 mA to 700 mA, output current for expansion modules (5 V DC) 660 mA

Encoder supply 

24 V encoder supply 

● 24 V Yes; permissible range: 15.4 to 28.8 V 

● Short-circuit protection Yes; electronic at 280 mA 

● Output current, max. 280 mA

Memory

Number of memory modules (optional) 1; pluggable memory module, content identical with integral EEPROM; can additionally store recipes, data logs and other files

Work memory

● integrated (for program) 12 kbyte; 8 KB with active run-time edit 

● integrated (for data) 8 kbyte

Backup

● present Yes; Program: Entire program maintenance-free on integral EEPROM, programmable via CPU; data: Entire DB 1 loaded from PG/PC maintenance-free on integral EEPROM, current values of DB 1 in RAM, retentive memory bits, timers, counters, etc. maintenance-free via high-performance capacitor; optional battery for long-term buffering

Battery 

Backup battery 

● Backup time, max. 100 h; (min. 70 h at 40 °C); 200 days (typ.) with optional battery module

CPU processing times 

for bit operations, max. 0.22 µs

Counters, timers and their retentivity 

S7 counter 

● Number 256