226 HEIDENHAIN Technical Manual MANUALplus 620
PLC inputs on the
PLD-H
Pin layout on the PLD-H xx-xx-xx input/output module:
Please note that a system with functional safety (FS) permits up to 100 safe,
dual-channel inputs (channels A and B). An MB 6xx FS from HEIDENHAIN
requires 56 of the 100 safe inputs, and connector X9 of a system PL requires
eight additional safe inputs. This means that max. 36 safe inputs can be dis-
tributed to the PLD-H xx-xx-xx FS.
The designation "Channel A" or ".A" for the PLC inputs is relevant only for I/O
modules with functional safety (FS).
Fast
PLC inputs
Only the first four slots of a PL 6xxx can be used for fast PLC inputs. The fifth
slot and the successive slots (on PL 6x06, PL 6x08) must not be defined as
fast PLC inputs.
The configuration of fast PLC inputs in the HSCI system corresponds to the
previous configuration using machine parameters.
The 0 V terminals of X11, X12 and X14 of the PLD-H are connected
internally. These connections are used for connecting the potential of the
electronics and for operating the LEDs. Since only a low current is required
(max. 50 mA), it is sufficient to establish only one 0 V connection
(preferably at X11).
X11: PLC inputs channel A
Assignment Terminal
1 2 3 4 5 6 7 8 9 10
PL6xxxSlot 1 0 V PLC0 V PLCI0I1I2I3I4I5I6I7
X12: PLC inputs channel A
Assignment Terminal
1 2 3 4 5 6 7 8 9 10
PL 6xxx Slot 1 0 V PLC 0 V PLC I8 I9 I10 I11 I12 I13 I14 I15
X14: PLC inputs channel B
Assignment Terminal
1 2 3 4 5 6 7 8 9 10
PL 6xxx Slot 1 0 V PLC 0 V PLC I0.B I1.B I2.B I3.B I4.B I5.B I6.B I7.B
X17: PLC inputs, channel A/B
Assignment Terminal
1 2 3 4 5 6 7 8 9 10
PL 6xxx Slot 1 0 V PLC 0 V PLC I0.A I1.A I2.A I3.A I0.B I1.B I2.B I3.B
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