Digital Outputs; Synchronization In L-502; Synchronization Characteristics - L-Card L-502-P-G-D-I User Manual

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5.4. Digital outputs.

Number of digital outputs of general purpose
Control of the third state of outputs
Data entry modes
Maximum speed in synchronous mode
Maximum speed in asynchronous mode
Maximum permissible current
Recommended current in the load circuit
Voltage range at digital outputs
Output resistance, typical value
Maximum leakage current in operating mode in high-impedance
state
High-impedance state with power off

5.5. Synchronization in L-502.

5.5.1. Synchronization characteristics

The reference frequency of the process of synchronization of data
collection and output of ADC, DAC, digital input and output:
•
For a single module
•
For a multiple module synchronization
Limits of the permissible relative fundamental error of the
reference frequency
2
If the total load power is not exceeded, see s.
Parameter
2
in the load circuit
Parameter
4.6 Calculation of the total load power of
Value
16
Byte
Synchronous, asynchronous
1 KWords/s
the actual speed depends on many
factors of the software and hardware
environment.
20 mA
max. 8 mA
0...+0.4 V ("logical zero")
max. 2.4 V ("logical unit").
Output logic elements with a supply
voltage of 3.3 V
110 Ohm
±1 µA
No
Value
1.5/2.0 MHz
1.5/2.0 MHz
1,5 MHz
±0.005
L-502 output circuits