Specifications

PCI-CTR05
9-113
Scaling Input to Output
Driver Block Parameters
Counter. From the list, choose 1, 2, 3, 4, 5, 6, 7, 8, 9, or 10 to select which
counter is used with this driver block. In each case, one block is needed for each
counter.
Frequency Base - From the list, choose F1=1MHz, F2=100kHz, F3=10kHz,
F4=1kHz, or F5=100Hz to set the base frequency. The XTAL frequency is
assumed to be 1MHz, therefore the jumper on the CIO-CTR05 has to be in
position 1MHz not 5MHz.
Initial Relative Output Frequency - Enter a value between 0 and 1. The
Initial Relative Output Frequency defines the initial output frequency of the
FM-signal relative to the Frequency Base during driver initialization.
For example, if the initial output frequency of a square wave has to be 17.5
kHz, then choose F2=100kHz as the Frequency Base and enter
0.175 as the
Initial Relative Output Frequency. 100kHz x 0.175 = 17.5 kHz
Duty Cycle. Enter a value between 0 and 1 to set the duty cycle. The Duty
Cycle is held fixed during simulation.
Initial Toggle State - From the list, choose high or low. The Initial Toggle
State sets the initial digital level (high or low) of the output. For example, if
the Duty Cycle is 0.25 and the Initial Toggle State is High, the first 25% of the
period will have a high level and the last 75% will have a low level.
Initial ARM State - From the list, choose Disarmed or Armed. The Initial
ARM State defines if the counter should be armed or disarmed after driver
initialization. The ARM State during a simulation can be controlled by the
second block input. If a value 0 is asserted, the counter is disarmed. If a value
1 is asserted, the counter gets armed.
Sample Time - Enter the base sample time or a multiple of the base sample
time. The sample time indicates the update rate of registration on the input
(Duty Cycle)
Hardware Output Block Input Data Type Scaling
TTL Variable frequency: double
Arm: double
<0.5 disarmed
>
0.5 armed