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6.6.3
Status and fault displays
Status displays for CP52IO
Table 6- 27
The brightness of the LED indicates the density of periodic data traffic.
*)
6.6.4
Application notes and immunity to interference
The CP52IO GDM access modules in the racks are connected to the CP52A0 GDM
interface module via fiber-optic cables (FOC). Up to four racks can be connected to each
CP52IO.
● The CP52IO modules must be inserted between slots 2 and 12.
● Free slots between the individual modules are allowed.
● The rack may be equipped with a maximum of 11 CP52IO interface modules.
● Modules may not be inserted in slots 13 - 21.
● You may insert the fiber-optic cables into the FOC interfaces of CP52IO to suit your
● It is not necessary to occupy all FOC interfaces of CP52IO.
● Memory access rates do not depend on which CP52IO the fiber-optic cable is connected,
● as all FOC interfaces are assigned the same priority.
● Interference-proof operation is only possible if the CP52IO is firmly attached to the rack.
● The module may not be inserted or removed while the rack is on live voltage.
SIMATIC TDC hardware
System Manual, 12/2013, A5E01114865-07
Status and fault displays of the CP52IO GDM interface module
LED display
H1
Off
No data transfer to the CP52A0 GDM access module
H3
Glowing
/lit
Data transfer to the CP52A0 GDM access module
*)
H5
Flashing with
The CP52IO module is inserted in the wrong slot
0.5 Hz
H7
H2
Off
Missing or incorrect data transfer from the CP52A0GDM access module
H4
Glowing
/lit
Error-free data transfer from the CP52A0 GDM access module
*)
H6
Flashing with
The CP52IO module is inserted in the wrong slot
0.5 Hz
H8
application.
Insert the module and then bolt it onto the rack accordingly (two screw heads, see
"Control and display elements (Page 135)").
Note
• For more information on fan operation, refer to chapter "Rack (Page 39)"!
• For more information on EMC and environmental conditions, refer to chapter "General
technical specifications (Page 13)"!
Communication modules
6.6 CP52IO GDM interface module
State
137
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