Yokogawa DR240 - Manual (Page 159)

9-17 IM DR232-01E
9
Event/Action Function and Other Functions
Any of the following functions are executed and displayed by pressing the ENTER key, the last
key of the lower menu. After that, the recorder returns to the operation mode.
Clearing the alarm buffer (ALM BUF CLEAR)
Cancels all information in the alarm buffer; see page 6-11.
Clearing the message buffer (MSG BUF CLEAR)
Cancels all information in the message buffer; see page 7-3.
Displaying information set in the modules (MODULE INF)
• Selection of unit numbers (S UNIT)
• Select I from the main unit or 0 to 5 from the sub-unit.
• The unit number that is not recognized for the system cannot be selected.
• Module information (INF)
Displays the information in the module installed in the slot.
• SYSTEM: Displays the information recognized as the system module.
• REAL: Displays the real module information when the recognized system module is
replaced by another one or removed.
• If the SYSTEM displays information different from that of REAL module, the following
system must be configured. Otherwise, an operation error may occur or the recorder may
display measured values incorrectly.
• The information on individual modules is displayed as follows:
Module Display ID inside the display ( ) Description
Input module INPUT 00 to 3F
DI/DO module REMOTE 57
Alarm module RELAY 5C to 5F
Communication module COMM 48 to 4F
Module not installed –––––– FF
Invalid module installed ====== FE
Module error XXXXXX Displays error code (80 to FF).
Displaying communications information (COMM INF)
When the communication module is recognized as a system module, communications information
is displayed. For details on the communication information, see Section 3-5 “Connecting the
Interface Cables,” on page 3-14 or the separate DR231/232/DR241/DR242 Communication
Interface User’s Manual (publication number IM DR231-11E).
System configuration (RE SYSTEM)
Modules are recognized as system modules for this recorder.
• NO: Modules are not recognized as system modules.
• YES: Modules are recognized as system modules. It takes about 15 seconds to recognize
system modules.
Note
• After completing the system configuration, if you attempt to do the following, and then configure the
system again, the setting information for the corresponding module position (slot) will be initialized.
• Install modules with different model codes/style numbers into slots.
• Remove modules.
• Add modules.
• When you attempt the following, you should first configure the DR232/242 system to operate the
instrument correctly. After executing the system configuration, check the module information.
• Sub-unit connections (including additions and replacement)/removal/unit-number setting
• Installation (including additions and replacement)/removal of modules
• If the installed modules are not recognized in the system configuration, check that the:
• same unit number is not used or that the setting is out of range,
• number of modules does not exceed the allowed number,
• modules and units are connected properly, and
• power supply is operating properly.
Initialization (RAM INIT)
This initializes information other than the basic information set in Chapter 10 or calibration set in
Chapter 11. For details on initial setting, see the appropriate sections and explanations. All the
files in the internal RAM disk will be lost when the RAM is initialized.
• NO: Initialization not executed
• YES: Initializes the information. It takes about ten seconds to initialize the information.
9.4 Clearing Alarm/Message Buffers, Displaying Module/Communications Information, Structuring System
Modules, and Initializing Information