Siemens Simatic S7 Series

72
Review Answers
Review 1 1) a: input module, b: CPU, c: output module, d: programming
device, e: operator interface; 2) 2; 3) 16; 4) 1010, 0001 0000, A.
Review 2 1) discrete; 2) discrete; 3) CPU; 4) Ladder logic; 5) Statement
list, function block diagrams; 6) scan; 7)1024; 8) firmware;
9) RS-485.
Review 3 1) CPU 221, CPU 222, CPU 224, CPU 224XP, CPU 224XPsi,
CPU 226; 2) b; 3) 2, 7; 4) 8, 6; 5) 14, 10; 6) Q0.3; 7) DIN.
Review 4 1) a: box, b: normally open contact, c: coil;
2) AND Function - a: 0, b: 0, c: 0, d: 1,
OR Function - e: 0, f: 1, g: 1, h: 1;
3) I0.1, I0.0, Q0.0.
Review 5 1) 224XP; 2) On-Delay Timer (TON), Retentive On-Delay Timer
(TONR), Off-Delay Timer (TOF) ; 3) 3276.7 seconds;
4) Retentive On-Delay Timer (TONR); 5) On-Delay Timer (TON),
Off-Delay Timer (TOF), Pulse Timer (TP)
.
Review 6 1) Count Up Counter (CTU), Count Down Counter (CTD), Count
Up/Down Counter (CTUD); 2) 4, 6; 3) PTO/PWM generators;
4) CP 243-1, CP 243-1 IT; 5) EM 277 PROFIBUS-DP
6) CP 243-2 AS-Interface Master; 7) 4, 8; 8) 2, 4.
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