Product overview
KL1501, KL1512
8
Version: 3.1.0
2
Product overview
2.1
KL1501 - Introduction
Fig. 1: KL1501
Up/Down-Counter Terminal, 24 V
DC,
100 kHz
The KL1501 input terminal counts binary pulses and transfers the current value to the higher-level controller.
In addition to the 32-bit up/down counter, a 32-bit gated counter and two 16-bit counters are available. In
gated counter mode, a low or high level at the gate input disables the counting function of the terminal. If two
16-bit counters are active, the up/down input is the clock input for the second counter. In addition, two digital
outputs can be set.
The maximum input frequency is limited to 100 kHz, the minimum pulse width of the input signal is approx.
1 microsecond. The counters respond to the rising edge of the input signal.
The following controller options are available via the control byte: setting the counter value, disabling the
counting function of the terminal, enabling the outputs. In addition an internal function can be enabled, which
enables automatic setting of the outputs for defined counter values.
The LEDs indicate the state of the up/down and clock inputs and of outputs 1 and 2.
The representation of the process data differs depending on the set function.
In the
standard output format,
5 bytes (4 bytes user data and 1 control/status byte) are mapped. The
representation of the process data differs depending on the set function.
• Up/down counter: 32 bit signed integer
• Gated counter: 32 bit unsigned integer
• Two active counters: 2 x 16 bit unsigned integer
If the
alternative output format
is selected, note that the output length (4 bytes or 6 bytes instead of
5 bytes) and the terminal mapping will change.
• Up/down counter: 24 bit signed integer
• Gated counter: 24 bit signed integer
• Two active counters: 1 x 8 bit counter 0 and 1 x 16 bit counter 1
The terminal mapping is described in more detail in chapter
.
