
S7 PLC HMI
Operate S7, LOGO! and Modbus
About
What's New in S7 PLC HMI
1.4
September 18, 2026
Modbus TCP is here — and the app now runs on your Mac, too: one purchase covers iPhone, iPad and Mac. Reading got much faster as well: a 30-tag group that took 301 ms now reads in 11 ms on our S7-1200. MODBUS TCP • Connect to Modbus TCP devices alongside LOGO! and SIMATIC S7 — most PLCs, drives, meters and gateways speak it • Coils, discrete inputs, holding registers and input registers, with the data types you already use • Byte order per group and per object (ABCD/CDAB/BADC/DCBA), FC16/FC15 writes, optional 1-based addresses • Presets and address examples for Siemens, Schneider, Allen-Bradley and ABB — no digging through manuals • A ready-made sample set for the Siemens MB_SERVER example FASTER AND STEADIER • Block reading over all protocols — Modbus TCP, LOGO! and SIMATIC S7: a 30-tag group that 1.3 read in 301 ms now takes 11 ms on our S7-1200 (LOGO!: 21 ms → 2 ms) • Automatic reconnect after a dropped connection or a phone waking from sleep • Live value preview while you pick an address — you see what the PLC returns before you save • Duplicate an object to build rows like HR100, HR101, HR102 in seconds • Keep the screen awake while connected, for panel use on a stand
MoreSubscriptions & In-App Purchases
$5.99
Full version
Unlimited PLC groups and objects












