Festo EasyPort USB D16A, Руководство пользователя

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9. EasyPort USB command interpreter
© Festo Didactic GmbH & Co. KG „ 721876 141
Command Response Description and example
DS S=xx
Read out status word
The status word of an EasyPort USB module is returned as hexadecimal
value xx.
Meanings:
Bit 7 Bit 6
Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Display Up Down Out In Setup Error
Bit 0 = 1 Output driver error
Bit 1 = 1 Module initialised
Bit 2 = 1 Input voltage range -10...+10 V DC
Bit 2 = 0 Input voltage range 0...10 V DC
Bit 3 = 1 Output voltage range -10...+10 V DC
Bit 3 = 0 Output voltage range 0...10 V DC
Bit 4 = 1

button pressed
Bit 5 = 1

button pressed
Bit 6 = 1 All display segments are activated.
Bit 6 = 0 The normal display is activated
Example
Command Response Description
DS S = 12 A value of 12 hexadecimal or
18 decimal is returned.
This means: bit 1 = 1 and bit 4 = 1.
The EasyPort USB module is correctly
initialised, input and output voltage
have been set to 0...10 V, the

button is pressed and the
normal display is activated.
Initialisation and diagnostics (continued)