February 2012 1 – 649
Maximum number
of devices
The following table shows the maximum permissible number of individual HSCI participants for the
iTNC 530 HSCI:
Some features The following features characterize the HSCI connection:
Based on standard 100BaseT Ethernet hardware
Linear structure ("open ring"; closed ring or star configuration are not possible)
Only one master in the system (MC), all other devices are HSCI slaves
Benefits The HSCI connection has several benefits:
Hardware platform for flexible and scalable control system
(e.g. local axis systems)
High noise immunity due to digital communication between components
Greater permissible cable lengths of the complete system
More PLC inputs and outputs
Simple wiring
Comprehensive yet straightforward possibilities for diagnostics
Address
assignment
Different addresses are assigned to the individual participants in the HSCI network. The addresses are
assigned dynamically during booting of the MC. The addresses of the participants are formed from an
HSCI address (8 bits) and a device type address (6 bits).
The following applies to the assignment of the HSCI address:
The master (MC) always has the HSCI address 0.
The HSCI addresses of the slaves result from their position in the bus:
• First device after the master (MC): Bus address 1
• Second device after the master (MC): Bus address 2
•etc.
The device-type address is for internally distinguishing between connected HSCI participants.
Each device type (MC, CC, PL, MB, etc.) is assigned a type specification that is used to address all
HSCI participants of this type.
HSCI component Maximum quantity in the system
MC (HSCI master) 1 in the system
CC, UEC, UMC (HSCI slave) 4 controller motherboards
(distributed to CC, UEC, UMC as desired)
MB 6xx (FS), PLB 6001 (FS) (HSCI slave) 2 in the system Total number of 9
components must
not be exceeded
here.
PLB 62xx (FS) (HSCI slave) 1 in the system
(not with UEC 11x)
PLB 61xx (FS), PLB 62xx (FS) (HSCI slave) 7 in the system
HR handwheel (FS) (at MB 6xx or PLB 6001) 1 in the system
PLD-H xx-xx FS (in PLB 6xxx FS) 8 in the system
PLD-H xx-xx (in PLB 6xxx (FS)) 64 in the system
If you use more than one operating station or machine operating panel, the PLC program must
ensure that only one of the operating devices is active at any one time so as to avoid danger to
the operator.
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