Product specifications

Appendix A Hardware Units Technical Data
3BSE036351-510 A 253
Communication Ports and Interfaces
Technical data for communication ports and interfaces is described in Table 49 on
page 241.
Battery
The memory content is backed up with either an internal or external battery unit
(SB821). For back-up time see e Table 57 on page 253.
Weight • 1200 g (2.6 lb) (package PM861K01).
• 2800 g (6.1 lb) (package PM861K02).
Dimensions W 119 x H 186 x D 135 mm (4.7 x 7.3 x 5.3 in)
Width is measured along the DIN-rail, depth from the
wall, and height vertically, including lock
mechanism.
The figures in Table 57 on page 253 are valid if the batteries have been installed
after a normal CPU power-up, allowing for the memory back-up function to be
activated.
Table 57. Back-up times for PM861 and PM861A
Source
Back-up time
PM861 PM861A
Internal battery Minimum 36 hours Minimum 118 hours
External battery SB821 Minimum 3 weeks Minimum 12 weeks
External battery SB822 Minimum 85 hours
when fully charged
Minimum 285 hours
when fully charged
Table 56. PM861 and TP830 – Technical data (Continued)
Item Value