HEIDENHAIN TNC 407 (243 020) Technical Manual - Manual (Page 331)

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TNC 407/TNC 415/TNC 425 11 Analogue inputs and outputs 01.98
11 Analogue inputs and outputs
11.1 Analogue inputs
Eight analogue inputs are available on the input/output extensions PL 410, PL 410 B (Id.-Nr 263 371
02) and PA 110. Of these, four are analogue inputs for Pt 100 thermistors (range 0
°
to 100
°
C;
resolution 0.5
°
) and four are analogue inputs for ± 10 V DC (resolution 100 mV). The analogue values
are converted to digital values in the PL or PA and transferred to PLC words.
The content of the words can be further processed in the PLC for a variety of purposes (e.g.
compensating for thermal expansion, see section "Thermal compensation").
The word addresses in the PLC depend on whether the analogue inputs are on the first or second
extension. Machine parameter 4410 defines the extension on which the analogue inputs are found.
On the PL 410 the analogue inputs must be activated by a DIL switch. See chapter
"Installation and electrical connection", section "PLC Inputs/Outputs".
MP4410 Activate analogue input
Entry: %xx
Bit 0 = 0 No analogue inputs on extension #1
1 Analogue inputs on extension #1
Bit 1 = 0 No analogue inputs on extension #2
1 Analogue inputs on extension #2
Assignment of word addresses to the analogue inputs:
Input
PA Input
PL First
extension Second
extension Function Set Reset
X2
X3
X4
X5 X15
X16
X17
X18 W496
W498
W500
W502 W464
W466
W468
W470 Voltage input 0
Voltage input 1
Voltage input 2
Voltage input 3 NC NC
X7
X8
X9
X10 X19
X20
X21
X22 W504
W506
W508
W510 W472
W474
W476
W478 Temperature input 0
Temperature input 1
Temperature input 2
Temperature input 3 NC NC
Internal value range:
Voltage input:
−
100 to +100 (
−
10V to +10V)
Temperature input: 0 to 200 (0°C to 100°C)