IFM CR3020, Supplement Manual

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ifm Programming Manual (supplement) CAN module RTC CR3020 2017-10-26
ifm function elements ifm libraries for the device CRnnnn
3 ifm function elements
ifm libraries for the device CRnnnn ..................................................................................................... 12
ifm functional elements, POUs (Basic) ................................................................................................ 14
ifm functional elements, POUs (Classic) ............................................................................................. 25
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All CODESYS function elements (FBs, PRGs, FUNs) are stored in libraries. Below you will find a list of
all the
ifm libraries you can use with this device.
This is followed by a description of the function elements, sorted by topic.
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3.1 ifm libraries for the device CRnnnn
Library ifm_RTC_Basic_V02yyzz.LIB ................................................................................................. 12
Library ifm_RTC_Classicx_V02yyzz.LIB ............................................................................................. 13
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3.1.1 Library ifm_RTC_Basic_V02yyzz.LIB
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Only ONE real-time clock may be installed in each project!
The POUs of this library are designed for the following ifm devices:
• BasicController: CR040n, CR041n, CR043n
• BasicDisplay: CR045n
• SmartController: CR253n
This ifm library contains the following function blocks:
Function element Short description
CONCAT_DATE_TIME (→ p. 14 ) converts the received data that describe the time and the date from bytes into coherent strings
RTC_INITIALIZE (→ p. 16 ) initialises the connection between the controller and the real-time clock
RTC_REQUEST (→ p. 19 ) initialises the connection between the controller and the real-time clock
RTC_REQUEST_ALARM (→ p. 23 ) asks the real-time clock about the following current values:
• the remaining time till the setting of the alarm output
• the current node ID
RTC_SET (→ p. 17 ) Set new time, date and day of the week of the real-time clock
RTC_SET_ALARM (→ p. 21 ) configures the delay after which the real-time clock sets the alarm output