SIMATIC - PLC Programming & Automation

S7-1200 firmware mismatch: why the download stops and how to fix it

by PLC

Two cases side by side: a project configured V4.4 against a CPU running V2.2 where the download is refused, and a project configured V4.5 against a CPU running V4.6 where the download runs, with the three remedies listed as change device version, change device and firmware update

TIA Portal refuses the load because the CPU firmware is lower than the configured version. Read the real numbers, then pick the fix.

Siemens PLC Programming, S7-300 and S7-400 (SIMATIC S5) PLC

by PLC

plc programming Siemens S7 400 com plc

Siemens S7-300 and S7-400 programming: the instruction set, how the bus systems connect, and which communication types each family supports on site.

Advertisement