Technical data

5-146 Bosch Rexroth AG | Electric Drives and Controls Rexroth VCP-Operating Concept | R911305038 / 01
Standard Mode
5.21.2 Polling Area
The polling area consists of three segments:
1. Read coordination byte (1 byte or 1 word)
2. Serial message channel (2 bytes or 1 word)
3. Segment for controlling the status LEDs in the function keys
You can
• operate the entire polling area with a single field variable OR
• operate each segment of the polling area with separate variables.
If you operate the polling area with 1 variable:
1. Specify the name of the variable for the polling area.
2. Specify the polling time.
3. Specify the size of the polling area.
If you operate the polling area with 3 variables:
1. Specify the name of the variable for the Read coordination byte.
2. Specify the name of the variable for the serial message channel.
3. Specify the name of the variable for controlling the status LED in the
function keys
5.21.3 Terminal Clock
Here you can specify the name of the variable used for the data associ-
ated with the date, the time and the day of the week in the controller as
well as the polling time for data exchange.
Select the elements that are to be transferred. If no element is
selected, no data transfer will take place. For the date, choose whether
you want the year to be transmitted as a 2 or 4-digit value.
The terminal clock can be set from within the controller. For this pur-
pose, a variable must be specified, where the time to be set is stored.
See chapter “Read Coordination Byte“ on page 5-119.
See chapter “Write Coordination Byte“ on page 5-121.
See chapter “The Cyclical Polling Area“ on page 5-124.
See chapter “Status LEDs of Function Keys“ on page 5-117.
See chapter “Set Clock in Operating Device“ on page 5-133.
See chapter “Real Time Clock in the Operating Device“ on page 5-138.
See chapter “Date and Time Image“ on page 5-139.
See chapter “Setting the Real Time Clock from the Controller“ on page
5-140.
See chapter “Transferring the Real-Time to the Controller“ on page 5-
140.